Finding the Fourth Proportional to 22,516.47, 31,076.58 and 13,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,516.47 : 31,076.58 = 13,090.50 : x
2. Step 2: Convert to fraction form
   22,516.47/31,076.58 = 13,090.50/x
3. Step 3: Cross multiply
   22,516.47x = 31,076.58 × 13,090.50
4. Step 4: Simplify right side
   22,516.47x = 406,807,970.49
5. Step 5: Solve for x
   x = 406,807,970.49/22,516.47
6. Step 6: Final answer
   x = 18,067.13