Finding the Fourth Proportional to 11,734.17, 17,603.98 and 5,160.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,734.17 : 17,603.98 = 5,160.86 : x
2. Step 2: Convert to fraction form
   11,734.17/17,603.98 = 5,160.86/x
3. Step 3: Cross multiply
   11,734.17x = 17,603.98 × 5,160.86
4. Step 4: Simplify right side
   11,734.17x = 90,851,769.37
5. Step 5: Solve for x
   x = 90,851,769.37/11,734.17
6. Step 6: Final answer
   x = 7,742.50