Finding the Fourth Proportional to 7,574.09, 10,429.74 and 5,445.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,574.09 : 10,429.74 = 5,445.86 : x
2. Step 2: Convert to fraction form
   7,574.09/10,429.74 = 5,445.86/x
3. Step 3: Cross multiply
   7,574.09x = 10,429.74 × 5,445.86
4. Step 4: Simplify right side
   7,574.09x = 56,798,851.73
5. Step 5: Solve for x
   x = 56,798,851.73/7,574.09
6. Step 6: Final answer
   x = 7,499.10