Finding the Fourth Proportional to 42,298.48, 63,326.76 and 28,422.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,298.48 : 63,326.76 = 28,422.64 : x
2. Step 2: Convert to fraction form
   42,298.48/63,326.76 = 28,422.64/x
3. Step 3: Cross multiply
   42,298.48x = 63,326.76 × 28,422.64
4. Step 4: Simplify right side
   42,298.48x = 1,799,913,701.85
5. Step 5: Solve for x
   x = 1,799,913,701.85/42,298.48
6. Step 6: Final answer
   x = 42,552.68