Finding the Fourth Proportional to 10,188.12, 15,287.37 and 4,927.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,188.12 : 15,287.37 = 4,927.63 : x
2. Step 2: Convert to fraction form
   10,188.12/15,287.37 = 4,927.63/x
3. Step 3: Cross multiply
   10,188.12x = 15,287.37 × 4,927.63
4. Step 4: Simplify right side
   10,188.12x = 75,330,401.96
5. Step 5: Solve for x
   x = 75,330,401.96/10,188.12
6. Step 6: Final answer
   x = 7,393.95