Finding the Fourth Proportional to 22,987.52, 34,429.44 and 18,840.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,987.52 : 34,429.44 = 18,840.32 : x
2. Step 2: Convert to fraction form
   22,987.52/34,429.44 = 18,840.32/x
3. Step 3: Cross multiply
   22,987.52x = 34,429.44 × 18,840.32
4. Step 4: Simplify right side
   22,987.52x = 648,661,667.02
5. Step 5: Solve for x
   x = 648,661,667.02/22,987.52
6. Step 6: Final answer
   x = 28,217.99