Finding the Fourth Proportional to 78,164.43, 107,867.29 and 42,354.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,164.43 : 107,867.29 = 42,354.43 : x
2. Step 2: Convert to fraction form
   78,164.43/107,867.29 = 42,354.43/x
3. Step 3: Cross multiply
   78,164.43x = 107,867.29 × 42,354.43
4. Step 4: Simplify right side
   78,164.43x = 4,568,657,583.59
5. Step 5: Solve for x
   x = 4,568,657,583.59/78,164.43
6. Step 6: Final answer
   x = 58,449.32