Finding the Fourth Proportional to 91,313.52, 137,013.72 and 63,276.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,313.52 : 137,013.72 = 63,276.72 : x
2. Step 2: Convert to fraction form
   91,313.52/137,013.72 = 63,276.72/x
3. Step 3: Cross multiply
   91,313.52x = 137,013.72 × 63,276.72
4. Step 4: Simplify right side
   91,313.52x = 8,669,778,796.60
5. Step 5: Solve for x
   x = 8,669,778,796.60/91,313.52
6. Step 6: Final answer
   x = 94,945.18