Finding the Fourth Proportional to 82,263.47, 123,460.12 and 42,280.86

Step by Step Solution

1. Step 1: Write the proportion equation
   82,263.47 : 123,460.12 = 42,280.86 : x
2. Step 2: Convert to fraction form
   82,263.47/123,460.12 = 42,280.86/x
3. Step 3: Cross multiply
   82,263.47x = 123,460.12 × 42,280.86
4. Step 4: Simplify right side
   82,263.47x = 5,220,000,102.15
5. Step 5: Solve for x
   x = 5,220,000,102.15/82,263.47
6. Step 6: Final answer
   x = 63,454.65