Finding the Fourth Proportional to 10,507.18, 15,761.13 and 3,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507.18 : 15,761.13 = 3,581.50 : x
2. Step 2: Convert to fraction form
   10,507.18/15,761.13 = 3,581.50/x
3. Step 3: Cross multiply
   10,507.18x = 15,761.13 × 3,581.50
4. Step 4: Simplify right side
   10,507.18x = 56,448,487.10
5. Step 5: Solve for x
   x = 56,448,487.10/10,507.18
6. Step 6: Final answer
   x = 5,372.37