Finding the Fourth Proportional to 13,784.52, 20,673.12 and 5,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,784.52 : 20,673.12 = 5,991.50 : x
2. Step 2: Convert to fraction form
   13,784.52/20,673.12 = 5,991.50/x
3. Step 3: Cross multiply
   13,784.52x = 20,673.12 × 5,991.50
4. Step 4: Simplify right side
   13,784.52x = 123,862,998.48
5. Step 5: Solve for x
   x = 123,862,998.48/13,784.52
6. Step 6: Final answer
   x = 8,985.66