Finding the Fourth Proportional to 9,122.68, 12,590.52 and 5,347.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,122.68 : 12,590.52 = 5,347.34 : x
2. Step 2: Convert to fraction form
   9,122.68/12,590.52 = 5,347.34/x
3. Step 3: Cross multiply
   9,122.68x = 12,590.52 × 5,347.34
4. Step 4: Simplify right side
   9,122.68x = 67,325,791.22
5. Step 5: Solve for x
   x = 67,325,791.22/9,122.68
6. Step 6: Final answer
   x = 7,380.05