Finding the Fourth Proportional to 12,460.74, 17,196.15 and 7,155.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,460.74 : 17,196.15 = 7,155.89 : x
2. Step 2: Convert to fraction form
   12,460.74/17,196.15 = 7,155.89/x
3. Step 3: Cross multiply
   12,460.74x = 17,196.15 × 7,155.89
4. Step 4: Simplify right side
   12,460.74x = 123,053,819.64
5. Step 5: Solve for x
   x = 123,053,819.64/12,460.74
6. Step 6: Final answer
   x = 9,875.32