Finding the Fourth Proportional to 10,178.31, 15,219.86 and 7,247.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,178.31 : 15,219.86 = 7,247.73 : x
2. Step 2: Convert to fraction form
   10,178.31/15,219.86 = 7,247.73/x
3. Step 3: Cross multiply
   10,178.31x = 15,219.86 × 7,247.73
4. Step 4: Simplify right side
   10,178.31x = 110,309,399.68
5. Step 5: Solve for x
   x = 110,309,399.68/10,178.31
6. Step 6: Final answer
   x = 10,837.69