Finding the Fourth Proportional to 9,058.25, 12,499.16 and 5,079.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,058.25 : 12,499.16 = 5,079.12 : x
2. Step 2: Convert to fraction form
   9,058.25/12,499.16 = 5,079.12/x
3. Step 3: Cross multiply
   9,058.25x = 12,499.16 × 5,079.12
4. Step 4: Simplify right side
   9,058.25x = 63,484,708.14
5. Step 5: Solve for x
   x = 63,484,708.14/9,058.25
6. Step 6: Final answer
   x = 7,008.50