Finding the Fourth Proportional to 21,978.72, 32,967.62 and 5,338.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978.72 : 32,967.62 = 5,338.83 : x
2. Step 2: Convert to fraction form
   21,978.72/32,967.62 = 5,338.83/x
3. Step 3: Cross multiply
   21,978.72x = 32,967.62 × 5,338.83
4. Step 4: Simplify right side
   21,978.72x = 176,008,491.99
5. Step 5: Solve for x
   x = 176,008,491.99/21,978.72
6. Step 6: Final answer
   x = 8,008.13