Finding the Fourth Proportional to 68,087.91, 94,028.69 and 56,107.10

Step by Step Solution

1. Step 1: Write the proportion equation
   68,087.91 : 94,028.69 = 56,107.10 : x
2. Step 2: Convert to fraction form
   68,087.91/94,028.69 = 56,107.10/x
3. Step 3: Cross multiply
   68,087.91x = 94,028.69 × 56,107.10
4. Step 4: Simplify right side
   68,087.91x = 5,275,676,362.02
5. Step 5: Solve for x
   x = 5,275,676,362.02/68,087.91
6. Step 6: Final answer
   x = 77,483.31