Finding the Fourth Proportional to 7,499.79, 10,349.73 and 4,142.70

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499.79 : 10,349.73 = 4,142.70 : x
2. Step 2: Convert to fraction form
   7,499.79/10,349.73 = 4,142.70/x
3. Step 3: Cross multiply
   7,499.79x = 10,349.73 × 4,142.70
4. Step 4: Simplify right side
   7,499.79x = 42,875,826.47
5. Step 5: Solve for x
   x = 42,875,826.47/7,499.79
6. Step 6: Final answer
   x = 5,716.94