Finding the Fourth Proportional to 42,488.08, 63,671.52 and 31,306.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,488.08 : 63,671.52 = 31,306.84 : x
2. Step 2: Convert to fraction form
   42,488.08/63,671.52 = 31,306.84/x
3. Step 3: Cross multiply
   42,488.08x = 63,671.52 × 31,306.84
4. Step 4: Simplify right side
   42,488.08x = 1,993,354,089.20
5. Step 5: Solve for x
   x = 1,993,354,089.20/42,488.08
6. Step 6: Final answer
   x = 46,915.61