Finding the Fourth Proportional to 59,892.72, 89,685.63 and 58,118.92

Step by Step Solution

1. Step 1: Write the proportion equation
   59,892.72 : 89,685.63 = 58,118.92 : x
2. Step 2: Convert to fraction form
   59,892.72/89,685.63 = 58,118.92/x
3. Step 3: Cross multiply
   59,892.72x = 89,685.63 × 58,118.92
4. Step 4: Simplify right side
   59,892.72x = 5,212,431,730.91
5. Step 5: Solve for x
   x = 5,212,431,730.91/59,892.72
6. Step 6: Final answer
   x = 87,029.48