Finding the Fourth Proportional to 12,598.74, 17,389.41 and 7,296.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,598.74 : 17,389.41 = 7,296.78 : x
2. Step 2: Convert to fraction form
   12,598.74/17,389.41 = 7,296.78/x
3. Step 3: Cross multiply
   12,598.74x = 17,389.41 × 7,296.78
4. Step 4: Simplify right side
   12,598.74x = 126,886,699.10
5. Step 5: Solve for x
   x = 126,886,699.10/12,598.74
6. Step 6: Final answer
   x = 10,071.38