Finding the Fourth Proportional to 7,480.40, 10,322.90 and 4,123.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,480.40 : 10,322.90 = 4,123.22 : x
2. Step 2: Convert to fraction form
   7,480.40/10,322.90 = 4,123.22/x
3. Step 3: Cross multiply
   7,480.40x = 10,322.90 × 4,123.22
4. Step 4: Simplify right side
   7,480.40x = 42,563,539.69
5. Step 5: Solve for x
   x = 42,563,539.69/7,480.40
6. Step 6: Final answer
   x = 5,690.01