Finding the Fourth Proportional to 146,433.39, 202,077.50 and 81,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   146,433.39 : 202,077.50 = 81,902.72 : x
2. Step 2: Convert to fraction form
   146,433.39/202,077.50 = 81,902.72/x
3. Step 3: Cross multiply
   146,433.39x = 202,077.50 × 81,902.72
4. Step 4: Simplify right side
   146,433.39x = 16,550,695,480.90
5. Step 5: Solve for x
   x = 16,550,695,480.90/146,433.39
6. Step 6: Final answer
   x = 113,025.42