Finding the Fourth Proportional to 7,322.74, 10,978.89 and 3,425.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,322.74 : 10,978.89 = 3,425.02 : x
2. Step 2: Convert to fraction form
   7,322.74/10,978.89 = 3,425.02/x
3. Step 3: Cross multiply
   7,322.74x = 10,978.89 × 3,425.02
4. Step 4: Simplify right side
   7,322.74x = 37,602,917.83
5. Step 5: Solve for x
   x = 37,602,917.83/7,322.74
6. Step 6: Final answer
   x = 5,135.09