Finding the Fourth Proportional to 113,182.02, 156,200.49 and 72,979.47

Step by Step Solution

1. Step 1: Write the proportion equation
   113,182.02 : 156,200.49 = 72,979.47 : x
2. Step 2: Convert to fraction form
   113,182.02/156,200.49 = 72,979.47/x
3. Step 3: Cross multiply
   113,182.02x = 156,200.49 × 72,979.47
4. Step 4: Simplify right side
   113,182.02x = 11,399,428,973.94
5. Step 5: Solve for x
   x = 11,399,428,973.94/113,182.02
6. Step 6: Final answer
   x = 100,717.67