Finding the Fourth Proportional to 86,715,348.72, 119,658,557.40 and 50,057,729.52

Step by Step Solution

1. Step 1: Write the proportion equation
   86,715,348.72 : 119,658,557.40 = 50,057,729.52 : x
2. Step 2: Convert to fraction form
   86,715,348.72/119,658,557.40 = 50,057,729.52/x
3. Step 3: Cross multiply
   86,715,348.72x = 119,658,557.40 × 50,057,729.52
4. Step 4: Simplify right side
   86,715,348.72x = 5,989,835,701,082,595
5. Step 5: Solve for x
   x = 5,989,835,701,082,595/86,715,348.72
6. Step 6: Final answer
   x = 69,074,688.50