Finding the Fourth Proportional to 13,947.32, 19,247.63 and 7,574.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,947.32 : 19,247.63 = 7,574.15 : x
2. Step 2: Convert to fraction form
   13,947.32/19,247.63 = 7,574.15/x
3. Step 3: Cross multiply
   13,947.32x = 19,247.63 × 7,574.15
4. Step 4: Simplify right side
   13,947.32x = 145,784,302.66
5. Step 5: Solve for x
   x = 145,784,302.66/13,947.32
6. Step 6: Final answer
   x = 10,452.50