Finding the Fourth Proportional to 9,401.46, 12,973.99 and 5,152.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.46 : 12,973.99 = 5,152.78 : x
2. Step 2: Convert to fraction form
   9,401.46/12,973.99 = 5,152.78/x
3. Step 3: Cross multiply
   9,401.46x = 12,973.99 × 5,152.78
4. Step 4: Simplify right side
   9,401.46x = 66,852,116.19
5. Step 5: Solve for x
   x = 66,852,116.19/9,401.46
6. Step 6: Final answer
   x = 7,110.82