Finding the Fourth Proportional to 9,616.01, 14,407.61 and 7,767.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,616.01 : 14,407.61 = 7,767.99 : x
2. Step 2: Convert to fraction form
   9,616.01/14,407.61 = 7,767.99/x
3. Step 3: Cross multiply
   9,616.01x = 14,407.61 × 7,767.99
4. Step 4: Simplify right side
   9,616.01x = 111,918,131.56
5. Step 5: Solve for x
   x = 111,918,131.56/9,616.01
6. Step 6: Final answer
   x = 11,638.73