Finding the Fourth Proportional to 23,889.88, 32,969.15 and 13,279.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,889.88 : 32,969.15 = 13,279.69 : x
2. Step 2: Convert to fraction form
   23,889.88/32,969.15 = 13,279.69/x
3. Step 3: Cross multiply
   23,889.88x = 32,969.15 × 13,279.69
4. Step 4: Simplify right side
   23,889.88x = 437,820,042.34
5. Step 5: Solve for x
   x = 437,820,042.34/23,889.88
6. Step 6: Final answer
   x = 18,326.59