Finding the Fourth Proportional to 52,789.71, 72,822.18 and 32,640.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789.71 : 72,822.18 = 32,640.15 : x
2. Step 2: Convert to fraction form
   52,789.71/72,822.18 = 32,640.15/x
3. Step 3: Cross multiply
   52,789.71x = 72,822.18 × 32,640.15
4. Step 4: Simplify right side
   52,789.71x = 2,376,926,878.53
5. Step 5: Solve for x
   x = 2,376,926,878.53/52,789.71
6. Step 6: Final answer
   x = 45,026.33