Finding the Fourth Proportional to 143,068.50, 214,550.91 and 64,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,068.50 : 214,550.91 = 64,142.10 : x
2. Step 2: Convert to fraction form
   143,068.50/214,550.91 = 64,142.10/x
3. Step 3: Cross multiply
   143,068.50x = 214,550.91 × 64,142.10
4. Step 4: Simplify right side
   143,068.50x = 13,761,745,924.31
5. Step 5: Solve for x
   x = 13,761,745,924.31/143,068.50
6. Step 6: Final answer
   x = 96,189.91