Finding the Fourth Proportional to 28,118.98, 42,164.56 and 9,392.58

Step by Step Solution

1. Step 1: Write the proportion equation
   28,118.98 : 42,164.56 = 9,392.58 : x
2. Step 2: Convert to fraction form
   28,118.98/42,164.56 = 9,392.58/x
3. Step 3: Cross multiply
   28,118.98x = 42,164.56 × 9,392.58
4. Step 4: Simplify right side
   28,118.98x = 396,034,002.96
5. Step 5: Solve for x
   x = 396,034,002.96/28,118.98
6. Step 6: Final answer
   x = 14,084.22