Finding the Fourth Proportional to 91,607.86, 137,389.67 and 38,271.02

Step by Step Solution

1. Step 1: Write the proportion equation
   91,607.86 : 137,389.67 = 38,271.02 : x
2. Step 2: Convert to fraction form
   91,607.86/137,389.67 = 38,271.02/x
3. Step 3: Cross multiply
   91,607.86x = 137,389.67 × 38,271.02
4. Step 4: Simplify right side
   91,607.86x = 5,258,042,073.58
5. Step 5: Solve for x
   x = 5,258,042,073.58/91,607.86
6. Step 6: Final answer
   x = 57,397.28