Finding the Fourth Proportional to 152,196.03, 209,982.92 and 91,785.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,196.03 : 209,982.92 = 91,785.15 : x
2. Step 2: Convert to fraction form
   152,196.03/209,982.92 = 91,785.15/x
3. Step 3: Cross multiply
   152,196.03x = 209,982.92 × 91,785.15
4. Step 4: Simplify right side
   152,196.03x = 19,273,313,350.71
5. Step 5: Solve for x
   x = 19,273,313,350.71/152,196.03
6. Step 6: Final answer
   x = 126,634.80