Finding the Fourth Proportional to 152,454.80, 210,387.72 and 83,543.96

Step by Step Solution

1. Step 1: Write the proportion equation
   152,454.80 : 210,387.72 = 83,543.96 : x
2. Step 2: Convert to fraction form
   152,454.80/210,387.72 = 83,543.96/x
3. Step 3: Cross multiply
   152,454.80x = 210,387.72 × 83,543.96
4. Step 4: Simplify right side
   152,454.80x = 17,576,623,264.17
5. Step 5: Solve for x
   x = 17,576,623,264.17/152,454.80
6. Step 6: Final answer
   x = 115,290.72