Finding the Fourth Proportional to 88,280.30, 121,812.72 and 58,077.83

Step by Step Solution

1. Step 1: Write the proportion equation
   88,280.30 : 121,812.72 = 58,077.83 : x
2. Step 2: Convert to fraction form
   88,280.30/121,812.72 = 58,077.83/x
3. Step 3: Cross multiply
   88,280.30x = 121,812.72 × 58,077.83
4. Step 4: Simplify right side
   88,280.30x = 7,074,618,444.00
5. Step 5: Solve for x
   x = 7,074,618,444.00/88,280.30
6. Step 6: Final answer
   x = 80,138.13