Finding the Fourth Proportional to 59,920.72, 82,659.30 and 48,603.40

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920.72 : 82,659.30 = 48,603.40 : x
2. Step 2: Convert to fraction form
   59,920.72/82,659.30 = 48,603.40/x
3. Step 3: Cross multiply
   59,920.72x = 82,659.30 × 48,603.40
4. Step 4: Simplify right side
   59,920.72x = 4,017,523,021.62
5. Step 5: Solve for x
   x = 4,017,523,021.62/59,920.72
6. Step 6: Final answer
   x = 67,047.31