Finding the Fourth Proportional to 9,422.80, 13,003.40 and 5,173.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,422.80 : 13,003.40 = 5,173.93 : x
2. Step 2: Convert to fraction form
   9,422.80/13,003.40 = 5,173.93/x
3. Step 3: Cross multiply
   9,422.80x = 13,003.40 × 5,173.93
4. Step 4: Simplify right side
   9,422.80x = 67,278,681.36
5. Step 5: Solve for x
   x = 67,278,681.36/9,422.80
6. Step 6: Final answer
   x = 7,139.99