Finding the Fourth Proportional to 10,180.20, 15,272.12 and 5,248.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,180.20 : 15,272.12 = 5,248.51 : x
2. Step 2: Convert to fraction form
   10,180.20/15,272.12 = 5,248.51/x
3. Step 3: Cross multiply
   10,180.20x = 15,272.12 × 5,248.51
4. Step 4: Simplify right side
   10,180.20x = 80,155,848.30
5. Step 5: Solve for x
   x = 80,155,848.30/10,180.20
6. Step 6: Final answer
   x = 7,873.70