Finding the Fourth Proportional to 11,890.77, 17,836.31 and 4,498.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,890.77 : 17,836.31 = 4,498.71 : x
2. Step 2: Convert to fraction form
   11,890.77/17,836.31 = 4,498.71/x
3. Step 3: Cross multiply
   11,890.77x = 17,836.31 × 4,498.71
4. Step 4: Simplify right side
   11,890.77x = 80,240,386.16
5. Step 5: Solve for x
   x = 80,240,386.16/11,890.77
6. Step 6: Final answer
   x = 6,748.12