Finding the Fourth Proportional to 58,632.52, 81,020.02 and 42,689.16

Step by Step Solution

1. Step 1: Write the proportion equation
   58,632.52 : 81,020.02 = 42,689.16 : x
2. Step 2: Convert to fraction form
   58,632.52/81,020.02 = 42,689.16/x
3. Step 3: Cross multiply
   58,632.52x = 81,020.02 × 42,689.16
4. Step 4: Simplify right side
   58,632.52x = 3,458,676,596.98
5. Step 5: Solve for x
   x = 3,458,676,596.98/58,632.52
6. Step 6: Final answer
   x = 58,989.05