Finding the Fourth Proportional to 9,340.10, 12,889.42 and 5,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,340.10 : 12,889.42 = 5,148.50 : x
2. Step 2: Convert to fraction form
   9,340.10/12,889.42 = 5,148.50/x
3. Step 3: Cross multiply
   9,340.10x = 12,889.42 × 5,148.50
4. Step 4: Simplify right side
   9,340.10x = 66,361,101.55
5. Step 5: Solve for x
   x = 66,361,101.55/9,340.10
6. Step 6: Final answer
   x = 7,104.97