Finding the Fourth Proportional to 123,047.56, 169,807.22 and 72,746.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,047.56 : 169,807.22 = 72,746.12 : x
2. Step 2: Convert to fraction form
   123,047.56/169,807.22 = 72,746.12/x
3. Step 3: Cross multiply
   123,047.56x = 169,807.22 × 72,746.12
4. Step 4: Simplify right side
   123,047.56x = 12,352,816,402.99
5. Step 5: Solve for x
   x = 12,352,816,402.99/123,047.56
6. Step 6: Final answer
   x = 100,390.58