Finding the Fourth Proportional to 82,263.29, 123,405.32 and 28,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,263.29 : 123,405.32 = 28,238.50 : x
2. Step 2: Convert to fraction form
   82,263.29/123,405.32 = 28,238.50/x
3. Step 3: Cross multiply
   82,263.29x = 123,405.32 × 28,238.50
4. Step 4: Simplify right side
   82,263.29x = 3,484,781,680.90
5. Step 5: Solve for x
   x = 3,484,781,680.90/82,263.29
6. Step 6: Final answer
   x = 42,361.32