Finding the Fourth Proportional to 12,551.34, 17,320.58 and 7,174.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,551.34 : 17,320.58 = 7,174.02 : x
2. Step 2: Convert to fraction form
   12,551.34/17,320.58 = 7,174.02/x
3. Step 3: Cross multiply
   12,551.34x = 17,320.58 × 7,174.02
4. Step 4: Simplify right side
   12,551.34x = 124,258,187.33
5. Step 5: Solve for x
   x = 124,258,187.33/12,551.34
6. Step 6: Final answer
   x = 9,899.99