Finding the Fourth Proportional to 152,151.80, 209,898.72 and 98,454.16

Step by Step Solution

1. Step 1: Write the proportion equation
   152,151.80 : 209,898.72 = 98,454.16 : x
2. Step 2: Convert to fraction form
   152,151.80/209,898.72 = 98,454.16/x
3. Step 3: Cross multiply
   152,151.80x = 209,898.72 × 98,454.16
4. Step 4: Simplify right side
   152,151.80x = 20,665,402,162.68
5. Step 5: Solve for x
   x = 20,665,402,162.68/152,151.80
6. Step 6: Final answer
   x = 135,820.95