Finding the Fourth Proportional to 152,069.76, 209,852.16 and 85,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,069.76 : 209,852.16 = 85,014.72 : x
2. Step 2: Convert to fraction form
   152,069.76/209,852.16 = 85,014.72/x
3. Step 3: Cross multiply
   152,069.76x = 209,852.16 × 85,014.72
4. Step 4: Simplify right side
   152,069.76x = 17,840,522,623.80
5. Step 5: Solve for x
   x = 17,840,522,623.80/152,069.76
6. Step 6: Final answer
   x = 117,318.02