Finding the Fourth Proportional to 152,028.08, 209,798.72 and 83,117.78

Step by Step Solution

1. Step 1: Write the proportion equation
   152,028.08 : 209,798.72 = 83,117.78 : x
2. Step 2: Convert to fraction form
   152,028.08/209,798.72 = 83,117.78/x
3. Step 3: Cross multiply
   152,028.08x = 209,798.72 × 83,117.78
4. Step 4: Simplify right side
   152,028.08x = 17,438,003,853.24
5. Step 5: Solve for x
   x = 17,438,003,853.24/152,028.08
6. Step 6: Final answer
   x = 114,702.52