Finding the Fourth Proportional to 22,454.86, 30,991.37 and 13,507.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,454.86 : 30,991.37 = 13,507.29 : x
2. Step 2: Convert to fraction form
   22,454.86/30,991.37 = 13,507.29/x
3. Step 3: Cross multiply
   22,454.86x = 30,991.37 × 13,507.29
4. Step 4: Simplify right side
   22,454.86x = 418,609,422.09
5. Step 5: Solve for x
   x = 418,609,422.09/22,454.86
6. Step 6: Final answer
   x = 18,642.26