Finding the Fourth Proportional to 7,079.88, 10,592.10 and 5,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,079.88 : 10,592.10 = 5,109.30 : x
2. Step 2: Convert to fraction form
   7,079.88/10,592.10 = 5,109.30/x
3. Step 3: Cross multiply
   7,079.88x = 10,592.10 × 5,109.30
4. Step 4: Simplify right side
   7,079.88x = 54,118,216.53
5. Step 5: Solve for x
   x = 54,118,216.53/7,079.88
6. Step 6: Final answer
   x = 7,643.95