Finding the Fourth Proportional to 13,314.18, 18,374.45 and 7,650.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,314.18 : 18,374.45 = 7,650.76 : x
2. Step 2: Convert to fraction form
   13,314.18/18,374.45 = 7,650.76/x
3. Step 3: Cross multiply
   13,314.18x = 18,374.45 × 7,650.76
4. Step 4: Simplify right side
   13,314.18x = 140,578,480.27
5. Step 5: Solve for x
   x = 140,578,480.27/13,314.18
6. Step 6: Final answer
   x = 10,558.56