Finding the Fourth Proportional to 52,617.69, 72,614.22 and 28,746.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,617.69 : 72,614.22 = 28,746.18 : x
2. Step 2: Convert to fraction form
   52,617.69/72,614.22 = 28,746.18/x
3. Step 3: Cross multiply
   52,617.69x = 72,614.22 × 28,746.18
4. Step 4: Simplify right side
   52,617.69x = 2,087,381,438.68
5. Step 5: Solve for x
   x = 2,087,381,438.68/52,617.69
6. Step 6: Final answer
   x = 39,670.72