Finding the Fourth Proportional to 19,987.71, 29,978.83 and 5,949.91

Step by Step Solution

1. Step 1: Write the proportion equation
   19,987.71 : 29,978.83 = 5,949.91 : x
2. Step 2: Convert to fraction form
   19,987.71/29,978.83 = 5,949.91/x
3. Step 3: Cross multiply
   19,987.71x = 29,978.83 × 5,949.91
4. Step 4: Simplify right side
   19,987.71x = 178,371,205.39
5. Step 5: Solve for x
   x = 178,371,205.39/19,987.71
6. Step 6: Final answer
   x = 8,924.04