Finding the Fourth Proportional to 10,502.39, 15,754.50 and 3,840.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,502.39 : 15,754.50 = 3,840.72 : x
2. Step 2: Convert to fraction form
   10,502.39/15,754.50 = 3,840.72/x
3. Step 3: Cross multiply
   10,502.39x = 15,754.50 × 3,840.72
4. Step 4: Simplify right side
   10,502.39x = 60,508,623.24
5. Step 5: Solve for x
   x = 60,508,623.24/10,502.39
6. Step 6: Final answer
   x = 5,761.41