Finding the Fourth Proportional to 11,697.06, 17,545.72 and 3,905.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,697.06 : 17,545.72 = 3,905.88 : x
2. Step 2: Convert to fraction form
   11,697.06/17,545.72 = 3,905.88/x
3. Step 3: Cross multiply
   11,697.06x = 17,545.72 × 3,905.88
4. Step 4: Simplify right side
   11,697.06x = 68,531,476.83
5. Step 5: Solve for x
   x = 68,531,476.83/11,697.06
6. Step 6: Final answer
   x = 5,858.86