Finding the Fourth Proportional to 11,724.72, 17,588.70 and 3,935.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,724.72 : 17,588.70 = 3,935.76 : x
2. Step 2: Convert to fraction form
   11,724.72/17,588.70 = 3,935.76/x
3. Step 3: Cross multiply
   11,724.72x = 17,588.70 × 3,935.76
4. Step 4: Simplify right side
   11,724.72x = 69,224,901.91
5. Step 5: Solve for x
   x = 69,224,901.91/11,724.72
6. Step 6: Final answer
   x = 5,904.18