Finding the Fourth Proportional to 91,632.46, 137,490 and 58,343.89

Step by Step Solution

1. Step 1: Write the proportion equation
   91,632.46 : 137,490 = 58,343.89 : x
2. Step 2: Convert to fraction form
   91,632.46/137,490 = 58,343.89/x
3. Step 3: Cross multiply
   91,632.46x = 137,490 × 58,343.89
4. Step 4: Simplify right side
   91,632.46x = 8,021,701,436.10
5. Step 5: Solve for x
   x = 8,021,701,436.10/91,632.46
6. Step 6: Final answer
   x = 87,542.14