Finding the Fourth Proportional to 9,479.89, 13,074.37 and 7,117.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,479.89 : 13,074.37 = 7,117.93 : x
2. Step 2: Convert to fraction form
   9,479.89/13,074.37 = 7,117.93/x
3. Step 3: Cross multiply
   9,479.89x = 13,074.37 × 7,117.93
4. Step 4: Simplify right side
   9,479.89x = 93,062,450.45
5. Step 5: Solve for x
   x = 93,062,450.45/9,479.89
6. Step 6: Final answer
   x = 9,816.83