Finding the Fourth Proportional to 14,155.34, 19,547.52 and 9,131.36

Step by Step Solution

1. Step 1: Write the proportion equation
   14,155.34 : 19,547.52 = 9,131.36 : x
2. Step 2: Convert to fraction form
   14,155.34/19,547.52 = 9,131.36/x
3. Step 3: Cross multiply
   14,155.34x = 19,547.52 × 9,131.36
4. Step 4: Simplify right side
   14,155.34x = 178,495,442.23
5. Step 5: Solve for x
   x = 178,495,442.23/14,155.34
6. Step 6: Final answer
   x = 12,609.76