Finding the Fourth Proportional to 13,196.92, 19,793.46 and 4,987

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.92 : 19,793.46 = 4,987 : x
2. Step 2: Convert to fraction form
   13,196.92/19,793.46 = 4,987/x
3. Step 3: Cross multiply
   13,196.92x = 19,793.46 × 4,987
4. Step 4: Simplify right side
   13,196.92x = 98,709,985.02
5. Step 5: Solve for x
   x = 98,709,985.02/13,196.92
6. Step 6: Final answer
   x = 7,479.77