Finding the Fourth Proportional to 22,656.83, 31,292.60 and 15,090.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,656.83 : 31,292.60 = 15,090.71 : x
2. Step 2: Convert to fraction form
   22,656.83/31,292.60 = 15,090.71/x
3. Step 3: Cross multiply
   22,656.83x = 31,292.60 × 15,090.71
4. Step 4: Simplify right side
   22,656.83x = 472,227,319.83
5. Step 5: Solve for x
   x = 472,227,319.83/22,656.83
6. Step 6: Final answer
   x = 20,842.61