Finding the Fourth Proportional to 52,686.72, 72,707.04 and 30,330.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,686.72 : 72,707.04 = 30,330.72 : x
2. Step 2: Convert to fraction form
   52,686.72/72,707.04 = 30,330.72/x
3. Step 3: Cross multiply
   52,686.72x = 72,707.04 × 30,330.72
4. Step 4: Simplify right side
   52,686.72x = 2,205,256,872.27
5. Step 5: Solve for x
   x = 2,205,256,872.27/52,686.72
6. Step 6: Final answer
   x = 41,856.03