Finding the Fourth Proportional to 151,499.75, 209,069.60 and 83,517.88

Step by Step Solution

1. Step 1: Write the proportion equation
   151,499.75 : 209,069.60 = 83,517.88 : x
2. Step 2: Convert to fraction form
   151,499.75/209,069.60 = 83,517.88/x
3. Step 3: Cross multiply
   151,499.75x = 209,069.60 × 83,517.88
4. Step 4: Simplify right side
   151,499.75x = 17,461,049,764.45
5. Step 5: Solve for x
   x = 17,461,049,764.45/151,499.75
6. Step 6: Final answer
   x = 115,254.64