Finding the Fourth Proportional to 9,342.95, 12,890.66 and 5,362.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,342.95 : 12,890.66 = 5,362.61 : x
2. Step 2: Convert to fraction form
   9,342.95/12,890.66 = 5,362.61/x
3. Step 3: Cross multiply
   9,342.95x = 12,890.66 × 5,362.61
4. Step 4: Simplify right side
   9,342.95x = 69,127,627.86
5. Step 5: Solve for x
   x = 69,127,627.86/9,342.95
6. Step 6: Final answer
   x = 7,398.91