Finding the Fourth Proportional to 9,392.33, 12,961.43 and 5,085.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,392.33 : 12,961.43 = 5,085.47 : x
2. Step 2: Convert to fraction form
   9,392.33/12,961.43 = 5,085.47/x
3. Step 3: Cross multiply
   9,392.33x = 12,961.43 × 5,085.47
4. Step 4: Simplify right side
   9,392.33x = 65,914,898.61
5. Step 5: Solve for x
   x = 65,914,898.61/9,392.33
6. Step 6: Final answer
   x = 7,017.95