Finding the Fourth Proportional to 9,078.31, 12,527.98 and 5,099.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.31 : 12,527.98 = 5,099.33 : x
2. Step 2: Convert to fraction form
   9,078.31/12,527.98 = 5,099.33/x
3. Step 3: Cross multiply
   9,078.31x = 12,527.98 × 5,099.33
4. Step 4: Simplify right side
   9,078.31x = 63,884,304.25
5. Step 5: Solve for x
   x = 63,884,304.25/9,078.31
6. Step 6: Final answer
   x = 7,037.03