Finding the Fourth Proportional to 21,784.50, 30,062.61 and 11,848.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,784.50 : 30,062.61 = 11,848.50 : x
2. Step 2: Convert to fraction form
   21,784.50/30,062.61 = 11,848.50/x
3. Step 3: Cross multiply
   21,784.50x = 30,062.61 × 11,848.50
4. Step 4: Simplify right side
   21,784.50x = 356,196,834.59
5. Step 5: Solve for x
   x = 356,196,834.59/21,784.50
6. Step 6: Final answer
   x = 16,350.93