Finding the Fourth Proportional to 22,460.96, 31,023.60 and 15,410.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,460.96 : 31,023.60 = 15,410.72 : x
2. Step 2: Convert to fraction form
   22,460.96/31,023.60 = 15,410.72/x
3. Step 3: Cross multiply
   22,460.96x = 31,023.60 × 15,410.72
4. Step 4: Simplify right side
   22,460.96x = 478,096,012.99
5. Step 5: Solve for x
   x = 478,096,012.99/22,460.96
6. Step 6: Final answer
   x = 21,285.64