Finding the Fourth Proportional to 9,478.89, 13,073.00 and 7,116.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.89 : 13,073.00 = 7,116.93 : x
2. Step 2: Convert to fraction form
   9,478.89/13,073.00 = 7,116.93/x
3. Step 3: Cross multiply
   9,478.89x = 13,073.00 × 7,116.93
4. Step 4: Simplify right side
   9,478.89x = 93,039,590.31
5. Step 5: Solve for x
   x = 93,039,590.31/9,478.89
6. Step 6: Final answer
   x = 9,815.45