Finding the Fourth Proportional to 48,709.72, 72,872.34 and 37,531.72

Step by Step Solution

1. Step 1: Write the proportion equation
   48,709.72 : 72,872.34 = 37,531.72 : x
2. Step 2: Convert to fraction form
   48,709.72/72,872.34 = 37,531.72/x
3. Step 3: Cross multiply
   48,709.72x = 72,872.34 × 37,531.72
4. Step 4: Simplify right side
   48,709.72x = 2,735,024,260.62
5. Step 5: Solve for x
   x = 2,735,024,260.62/48,709.72
6. Step 6: Final answer
   x = 56,149.46