Finding the Fourth Proportional to 9,079.29, 12,528.06 and 5,099.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079.29 : 12,528.06 = 5,099.63 : x
2. Step 2: Convert to fraction form
   9,079.29/12,528.06 = 5,099.63/x
3. Step 3: Cross multiply
   9,079.29x = 12,528.06 × 5,099.63
4. Step 4: Simplify right side
   9,079.29x = 63,888,407.98
5. Step 5: Solve for x
   x = 63,888,407.98/9,079.29
6. Step 6: Final answer
   x = 7,036.72