Finding the Fourth Proportional to 143,396,147,802.48, 215,091,267,974.32 and 47,789,109,678.08

Step by Step Solution

1. Step 1: Write the proportion equation
   143,396,147,802.48 : 215,091,267,974.32 = 47,789,109,678.08 : x
2. Step 2: Convert to fraction form
   143,396,147,802.48/215,091,267,974.32 = 47,789,109,678.08/x
3. Step 3: Cross multiply
   143,396,147,802.48x = 215,091,267,974.32 × 47,789,109,678.08
4. Step 4: Simplify right side
   143,396,147,802.48x = 10,279,020,196,022,074,736,640
5. Step 5: Solve for x
   x = 10,279,020,196,022,074,736,640/143,396,147,802.48
6. Step 6: Final answer
   x = 71,682,680,138.53