Finding the Fourth Proportional to 12,618.04, 17,412.90 and 7,315.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,618.04 : 17,412.90 = 7,315.93 : x
2. Step 2: Convert to fraction form
   12,618.04/17,412.90 = 7,315.93/x
3. Step 3: Cross multiply
   12,618.04x = 17,412.90 × 7,315.93
4. Step 4: Simplify right side
   12,618.04x = 127,391,557.50
5. Step 5: Solve for x
   x = 127,391,557.50/12,618.04
6. Step 6: Final answer
   x = 10,095.99