Finding the Fourth Proportional to 85,468.50, 128,208.15 and 32,877.90

Step by Step Solution

1. Step 1: Write the proportion equation
   85,468.50 : 128,208.15 = 32,877.90 : x
2. Step 2: Convert to fraction form
   85,468.50/128,208.15 = 32,877.90/x
3. Step 3: Cross multiply
   85,468.50x = 128,208.15 × 32,877.90
4. Step 4: Simplify right side
   85,468.50x = 4,215,214,734.89
5. Step 5: Solve for x
   x = 4,215,214,734.89/85,468.50
6. Step 6: Final answer
   x = 49,318.93