Finding the Fourth Proportional to 10,607.36, 15,903.46 and 4,981.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.36 : 15,903.46 = 4,981.88 : x
2. Step 2: Convert to fraction form
   10,607.36/15,903.46 = 4,981.88/x
3. Step 3: Cross multiply
   10,607.36x = 15,903.46 × 4,981.88
4. Step 4: Simplify right side
   10,607.36x = 79,229,156.61
5. Step 5: Solve for x
   x = 79,229,156.61/10,607.36
6. Step 6: Final answer
   x = 7,469.27