Finding the Fourth Proportional to 9,281.04, 12,801.40 and 5,742.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,281.04 : 12,801.40 = 5,742.15 : x
2. Step 2: Convert to fraction form
   9,281.04/12,801.40 = 5,742.15/x
3. Step 3: Cross multiply
   9,281.04x = 12,801.40 × 5,742.15
4. Step 4: Simplify right side
   9,281.04x = 73,507,559.01
5. Step 5: Solve for x
   x = 73,507,559.01/9,281.04
6. Step 6: Final answer
   x = 7,920.19