Finding the Fourth Proportional to 22,965.48, 31,656.42 and 15,003.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,965.48 : 31,656.42 = 15,003.72 : x
2. Step 2: Convert to fraction form
   22,965.48/31,656.42 = 15,003.72/x
3. Step 3: Cross multiply
   22,965.48x = 31,656.42 × 15,003.72
4. Step 4: Simplify right side
   22,965.48x = 474,964,061.88
5. Step 5: Solve for x
   x = 474,964,061.88/22,965.48
6. Step 6: Final answer
   x = 20,681.65