Finding the Fourth Proportional to 42,354.89, 63,452.14 and 28,272.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,354.89 : 63,452.14 = 28,272.45 : x
2. Step 2: Convert to fraction form
   42,354.89/63,452.14 = 28,272.45/x
3. Step 3: Cross multiply
   42,354.89x = 63,452.14 × 28,272.45
4. Step 4: Simplify right side
   42,354.89x = 1,793,947,384.86
5. Step 5: Solve for x
   x = 1,793,947,384.86/42,354.89
6. Step 6: Final answer
   x = 42,355.15