Finding the Fourth Proportional to 152,841.50, 210,940.71 and 85,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,841.50 : 210,940.71 = 85,773.50 : x
2. Step 2: Convert to fraction form
   152,841.50/210,940.71 = 85,773.50/x
3. Step 3: Cross multiply
   152,841.50x = 210,940.71 × 85,773.50
4. Step 4: Simplify right side
   152,841.50x = 18,093,122,989.19
5. Step 5: Solve for x
   x = 18,093,122,989.19/152,841.50
6. Step 6: Final answer
   x = 118,378.34