Finding the Fourth Proportional to 48,393.74, 72,874.85 and 42,227.31

Step by Step Solution

1. Step 1: Write the proportion equation
   48,393.74 : 72,874.85 = 42,227.31 : x
2. Step 2: Convert to fraction form
   48,393.74/72,874.85 = 42,227.31/x
3. Step 3: Cross multiply
   48,393.74x = 72,874.85 × 42,227.31
4. Step 4: Simplify right side
   48,393.74x = 3,077,308,671.02
5. Step 5: Solve for x
   x = 3,077,308,671.02/48,393.74
6. Step 6: Final answer
   x = 63,588.99