Finding the Fourth Proportional to 52,472.67, 72,439.95 and 42,151.86

Step by Step Solution

1. Step 1: Write the proportion equation
   52,472.67 : 72,439.95 = 42,151.86 : x
2. Step 2: Convert to fraction form
   52,472.67/72,439.95 = 42,151.86/x
3. Step 3: Cross multiply
   52,472.67x = 72,439.95 × 42,151.86
4. Step 4: Simplify right side
   52,472.67x = 3,053,478,630.81
5. Step 5: Solve for x
   x = 3,053,478,630.81/52,472.67
6. Step 6: Final answer
   x = 58,191.79