Finding the Fourth Proportional to 122,654.72, 169,269.56 and 74,900.36

Step by Step Solution

1. Step 1: Write the proportion equation
   122,654.72 : 169,269.56 = 74,900.36 : x
2. Step 2: Convert to fraction form
   122,654.72/169,269.56 = 74,900.36/x
3. Step 3: Cross multiply
   122,654.72x = 169,269.56 × 74,900.36
4. Step 4: Simplify right side
   122,654.72x = 12,678,350,981.04
5. Step 5: Solve for x
   x = 12,678,350,981.04/122,654.72
6. Step 6: Final answer
   x = 103,366.19