Finding the Fourth Proportional to 10,762.71, 14,859.78 and 9,624.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,762.71 : 14,859.78 = 9,624.84 : x
2. Step 2: Convert to fraction form
   10,762.71/14,859.78 = 9,624.84/x
3. Step 3: Cross multiply
   10,762.71x = 14,859.78 × 9,624.84
4. Step 4: Simplify right side
   10,762.71x = 143,022,968.84
5. Step 5: Solve for x
   x = 143,022,968.84/10,762.71
6. Step 6: Final answer
   x = 13,288.75