Finding the Fourth Proportional to 152,009, 209,793.25 and 87,476.91

Step by Step Solution

1. Step 1: Write the proportion equation
   152,009 : 209,793.25 = 87,476.91 : x
2. Step 2: Convert to fraction form
   152,009/209,793.25 = 87,476.91/x
3. Step 3: Cross multiply
   152,009x = 209,793.25 × 87,476.91
4. Step 4: Simplify right side
   152,009x = 18,352,065,248.86
5. Step 5: Solve for x
   x = 18,352,065,248.86/152,009
6. Step 6: Final answer
   x = 120,730.12