Finding the Fourth Proportional to 32,931.42, 49,397.12 and 15,413.55

Step by Step Solution

1. Step 1: Write the proportion equation
   32,931.42 : 49,397.12 = 15,413.55 : x
2. Step 2: Convert to fraction form
   32,931.42/49,397.12 = 15,413.55/x
3. Step 3: Cross multiply
   32,931.42x = 49,397.12 × 15,413.55
4. Step 4: Simplify right side
   32,931.42x = 761,384,978.98
5. Step 5: Solve for x
   x = 761,384,978.98/32,931.42
6. Step 6: Final answer
   x = 23,120.32