Finding the Fourth Proportional to 152,086.68, 209,871.24 and 84,099.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,086.68 : 209,871.24 = 84,099.72 : x
2. Step 2: Convert to fraction form
   152,086.68/209,871.24 = 84,099.72/x
3. Step 3: Cross multiply
   152,086.68x = 209,871.24 × 84,099.72
4. Step 4: Simplify right side
   152,086.68x = 17,650,112,520.05
5. Step 5: Solve for x
   x = 17,650,112,520.05/152,086.68
6. Step 6: Final answer
   x = 116,052.98