Finding the Fourth Proportional to 91,602.48, 138,109.89 and 91,033.86

Step by Step Solution

1. Step 1: Write the proportion equation
   91,602.48 : 138,109.89 = 91,033.86 : x
2. Step 2: Convert to fraction form
   91,602.48/138,109.89 = 91,033.86/x
3. Step 3: Cross multiply
   91,602.48x = 138,109.89 × 91,033.86
4. Step 4: Simplify right side
   91,602.48x = 12,572,676,390.88
5. Step 5: Solve for x
   x = 12,572,676,390.88/91,602.48
6. Step 6: Final answer
   x = 137,252.58