Finding the Fourth Proportional to 88,088.28, 121,662.82 and 58,008.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,088.28 : 121,662.82 = 58,008.12 : x
2. Step 2: Convert to fraction form
   88,088.28/121,662.82 = 58,008.12/x
3. Step 3: Cross multiply
   88,088.28x = 121,662.82 × 58,008.12
4. Step 4: Simplify right side
   88,088.28x = 7,057,431,462.10
5. Step 5: Solve for x
   x = 7,057,431,462.10/88,088.28
6. Step 6: Final answer
   x = 80,117.71