Finding the Fourth Proportional to 8,976.51, 12,386.18 and 5,200.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.51 : 12,386.18 = 5,200.04 : x
2. Step 2: Convert to fraction form
   8,976.51/12,386.18 = 5,200.04/x
3. Step 3: Cross multiply
   8,976.51x = 12,386.18 × 5,200.04
4. Step 4: Simplify right side
   8,976.51x = 64,408,543.52
5. Step 5: Solve for x
   x = 64,408,543.52/8,976.51
6. Step 6: Final answer
   x = 7,175.23