Finding the Fourth Proportional to 151,489.60, 209,047.50 and 83,493.02

Step by Step Solution

1. Step 1: Write the proportion equation
   151,489.60 : 209,047.50 = 83,493.02 : x
2. Step 2: Convert to fraction form
   151,489.60/209,047.50 = 83,493.02/x
3. Step 3: Cross multiply
   151,489.60x = 209,047.50 × 83,493.02
4. Step 4: Simplify right side
   151,489.60x = 17,454,007,098.45
5. Step 5: Solve for x
   x = 17,454,007,098.45/151,489.60
6. Step 6: Final answer
   x = 115,215.88