Finding the Fourth Proportional to 152,632.50, 210,632.85 and 85,564.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,632.50 : 210,632.85 = 85,564.50 : x
2. Step 2: Convert to fraction form
   152,632.50/210,632.85 = 85,564.50/x
3. Step 3: Cross multiply
   152,632.50x = 210,632.85 × 85,564.50
4. Step 4: Simplify right side
   152,632.50x = 18,022,694,493.83
5. Step 5: Solve for x
   x = 18,022,694,493.83/152,632.50
6. Step 6: Final answer
   x = 118,079.01