Finding the Fourth Proportional to 91,341.30, 137,031.12 and 38,749.62

Step by Step Solution

1. Step 1: Write the proportion equation
   91,341.30 : 137,031.12 = 38,749.62 : x
2. Step 2: Convert to fraction form
   91,341.30/137,031.12 = 38,749.62/x
3. Step 3: Cross multiply
   91,341.30x = 137,031.12 × 38,749.62
4. Step 4: Simplify right side
   91,341.30x = 5,309,903,828.17
5. Step 5: Solve for x
   x = 5,309,903,828.17/91,341.30
6. Step 6: Final answer
   x = 58,132.56