Finding the Fourth Proportional to 13,013.60, 19,512.50 and 4,247.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,013.60 : 19,512.50 = 4,247.37 : x
2. Step 2: Convert to fraction form
   13,013.60/19,512.50 = 4,247.37/x
3. Step 3: Cross multiply
   13,013.60x = 19,512.50 × 4,247.37
4. Step 4: Simplify right side
   13,013.60x = 82,876,785.89
5. Step 5: Solve for x
   x = 82,876,785.89/13,013.60
6. Step 6: Final answer
   x = 6,368.48