Finding the Fourth Proportional to 152,152.83, 209,900.16 and 98,455.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,152.83 : 209,900.16 = 98,455.20 : x
2. Step 2: Convert to fraction form
   152,152.83/209,900.16 = 98,455.20/x
3. Step 3: Cross multiply
   152,152.83x = 209,900.16 × 98,455.20
4. Step 4: Simplify right side
   152,152.83x = 20,665,761,445.71
5. Step 5: Solve for x
   x = 20,665,761,445.71/152,152.83
6. Step 6: Final answer
   x = 135,822.39