Finding the Fourth Proportional to 7,499.59, 10,353.86 and 5,145.19

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.59 : 10,353.86 = 5,145.19 : x
2. Step 2: Convert to fraction form
   7,499.59/10,353.86 = 5,145.19/x
3. Step 3: Cross multiply
   7,499.59x = 10,353.86 × 5,145.19
4. Step 4: Simplify right side
   7,499.59x = 53,272,576.93
5. Step 5: Solve for x
   x = 53,272,576.93/7,499.59
6. Step 6: Final answer
   x = 7,103.40