Finding the Fourth Proportional to 11,720.37, 17,596.89 and 7,760.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,720.37 : 17,596.89 = 7,760.01 : x
2. Step 2: Convert to fraction form
   11,720.37/17,596.89 = 7,760.01/x
3. Step 3: Cross multiply
   11,720.37x = 17,596.89 × 7,760.01
4. Step 4: Simplify right side
   11,720.37x = 136,552,042.37
5. Step 5: Solve for x
   x = 136,552,042.37/11,720.37
6. Step 6: Final answer
   x = 11,650.83