Finding the Fourth Proportional to 12,607.21, 17,400.06 and 7,305.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.21 : 17,400.06 = 7,305.25 : x
2. Step 2: Convert to fraction form
   12,607.21/17,400.06 = 7,305.25/x
3. Step 3: Cross multiply
   12,607.21x = 17,400.06 × 7,305.25
4. Step 4: Simplify right side
   12,607.21x = 127,111,788.32
5. Step 5: Solve for x
   x = 127,111,788.32/12,607.21
6. Step 6: Final answer
   x = 10,082.47