Finding the Fourth Proportional to 152,092.68, 209,879.52 and 84,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,092.68 : 209,879.52 = 84,105.72 : x
2. Step 2: Convert to fraction form
   152,092.68/209,879.52 = 84,105.72/x
3. Step 3: Cross multiply
   152,092.68x = 209,879.52 × 84,105.72
4. Step 4: Simplify right side
   152,092.68x = 17,652,068,142.85
5. Step 5: Solve for x
   x = 17,652,068,142.85/152,092.68
6. Step 6: Final answer
   x = 116,061.26