Finding the Fourth Proportional to 151,659.72, 209,291.31 and 83,675.61

Step by Step Solution

1. Step 1: Write the proportion equation
   151,659.72 : 209,291.31 = 83,675.61 : x
2. Step 2: Convert to fraction form
   151,659.72/209,291.31 = 83,675.61/x
3. Step 3: Cross multiply
   151,659.72x = 209,291.31 × 83,675.61
4. Step 4: Simplify right side
   151,659.72x = 17,512,578,031.95
5. Step 5: Solve for x
   x = 17,512,578,031.95/151,659.72
6. Step 6: Final answer
   x = 115,472.84