Finding the Fourth Proportional to 11,705.98, 17,560.12 and 3,385.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,705.98 : 17,560.12 = 3,385.81 : x
2. Step 2: Convert to fraction form
   11,705.98/17,560.12 = 3,385.81/x
3. Step 3: Cross multiply
   11,705.98x = 17,560.12 × 3,385.81
4. Step 4: Simplify right side
   11,705.98x = 59,455,229.90
5. Step 5: Solve for x
   x = 59,455,229.90/11,705.98
6. Step 6: Final answer
   x = 5,079.05