Finding the Fourth Proportional to 13,040.17, 17,997.93 and 7,737.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,040.17 : 17,997.93 = 7,737.91 : x
2. Step 2: Convert to fraction form
   13,040.17/17,997.93 = 7,737.91/x
3. Step 3: Cross multiply
   13,040.17x = 17,997.93 × 7,737.91
4. Step 4: Simplify right side
   13,040.17x = 139,266,362.53
5. Step 5: Solve for x
   x = 139,266,362.53/13,040.17
6. Step 6: Final answer
   x = 10,679.80