Finding the Fourth Proportional to 68,959.72, 95,131.86 and 58,995.20

Step by Step Solution

1. Step 1: Write the proportion equation
   68,959.72 : 95,131.86 = 58,995.20 : x
2. Step 2: Convert to fraction form
   68,959.72/95,131.86 = 58,995.20/x
3. Step 3: Cross multiply
   68,959.72x = 95,131.86 × 58,995.20
4. Step 4: Simplify right side
   68,959.72x = 5,612,323,107.07
5. Step 5: Solve for x
   x = 5,612,323,107.07/68,959.72
6. Step 6: Final answer
   x = 81,385.53