Finding the Fourth Proportional to 82,248.70, 123,348.22 and 42,784.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,248.70 : 123,348.22 = 42,784.28 : x
2. Step 2: Convert to fraction form
   82,248.70/123,348.22 = 42,784.28/x
3. Step 3: Cross multiply
   82,248.70x = 123,348.22 × 42,784.28
4. Step 4: Simplify right side
   82,248.70x = 5,277,364,781.98
5. Step 5: Solve for x
   x = 5,277,364,781.98/82,248.70
6. Step 6: Final answer
   x = 64,163.50