Finding the Fourth Proportional to 9,872.99, 14,796.34 and 4,867.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,872.99 : 14,796.34 = 4,867.72 : x
2. Step 2: Convert to fraction form
   9,872.99/14,796.34 = 4,867.72/x
3. Step 3: Cross multiply
   9,872.99x = 14,796.34 × 4,867.72
4. Step 4: Simplify right side
   9,872.99x = 72,024,390.98
5. Step 5: Solve for x
   x = 72,024,390.98/9,872.99
6. Step 6: Final answer
   x = 7,295.10