Finding the Fourth Proportional to 10.50, 15.72 and 5.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10.50 : 15.72 = 5.98 : x
2. Step 2: Convert to fraction form
   10.50/15.72 = 5.98/x
3. Step 3: Cross multiply
   10.50x = 15.72 × 5.98
4. Step 4: Simplify right side
   10.50x = 94.01
5. Step 5: Solve for x
   x = 94.01/10.50
6. Step 6: Final answer
   x = 8.95