Finding the Fourth Proportional to 22,516.72, 31,076.93 and 13,090.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,516.72 : 31,076.93 = 13,090.75 : x
2. Step 2: Convert to fraction form
   22,516.72/31,076.93 = 13,090.75/x
3. Step 3: Cross multiply
   22,516.72x = 31,076.93 × 13,090.75
4. Step 4: Simplify right side
   22,516.72x = 406,820,321.40
5. Step 5: Solve for x
   x = 406,820,321.40/22,516.72
6. Step 6: Final answer
   x = 18,067.48