Finding the Fourth Proportional to 11,379.17, 17,071.47 and 3,587.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,379.17 : 17,071.47 = 3,587.99 : x
2. Step 2: Convert to fraction form
   11,379.17/17,071.47 = 3,587.99/x
3. Step 3: Cross multiply
   11,379.17x = 17,071.47 × 3,587.99
4. Step 4: Simplify right side
   11,379.17x = 61,252,178.29
5. Step 5: Solve for x
   x = 61,252,178.29/11,379.17
6. Step 6: Final answer
   x = 5,382.83