Finding the Fourth Proportional to 9,058.50, 12,499.72 and 5,079.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,058.50 : 12,499.72 = 5,079.04 : x
2. Step 2: Convert to fraction form
   9,058.50/12,499.72 = 5,079.04/x
3. Step 3: Cross multiply
   9,058.50x = 12,499.72 × 5,079.04
4. Step 4: Simplify right side
   9,058.50x = 63,486,533.92
5. Step 5: Solve for x
   x = 63,486,533.92/9,058.50
6. Step 6: Final answer
   x = 7,008.50