Finding the Fourth Proportional to 10,824.51, 16,210.82 and 6,861.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,824.51 : 16,210.82 = 6,861.99 : x
2. Step 2: Convert to fraction form
   10,824.51/16,210.82 = 6,861.99/x
3. Step 3: Cross multiply
   10,824.51x = 16,210.82 × 6,861.99
4. Step 4: Simplify right side
   10,824.51x = 111,238,501.89
5. Step 5: Solve for x
   x = 111,238,501.89/10,824.51
6. Step 6: Final answer
   x = 10,276.54