Finding the Fourth Proportional to 78,004.01, 107,645.68 and 42,194.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,004.01 : 107,645.68 = 42,194.05 : x
2. Step 2: Convert to fraction form
   78,004.01/107,645.68 = 42,194.05/x
3. Step 3: Cross multiply
   78,004.01x = 107,645.68 × 42,194.05
4. Step 4: Simplify right side
   78,004.01x = 4,542,006,987.83
5. Step 5: Solve for x
   x = 4,542,006,987.83/78,004.01
6. Step 6: Final answer
   x = 58,227.86