Finding the Fourth Proportional to 103,693.98, 155,540.86 and 28,814.08

Step by Step Solution

1. Step 1: Write the proportion equation
   103,693.98 : 155,540.86 = 28,814.08 : x
2. Step 2: Convert to fraction form
   103,693.98/155,540.86 = 28,814.08/x
3. Step 3: Cross multiply
   103,693.98x = 155,540.86 × 28,814.08
4. Step 4: Simplify right side
   103,693.98x = 4,481,766,783.31
5. Step 5: Solve for x
   x = 4,481,766,783.31/103,693.98
6. Step 6: Final answer
   x = 43,221.09