Finding the Fourth Proportional to 52,074.50, 78,067.94 and 42,189.26

Step by Step Solution

1. Step 1: Write the proportion equation
   52,074.50 : 78,067.94 = 42,189.26 : x
2. Step 2: Convert to fraction form
   52,074.50/78,067.94 = 42,189.26/x
3. Step 3: Cross multiply
   52,074.50x = 78,067.94 × 42,189.26
4. Step 4: Simplify right side
   52,074.50x = 3,293,628,618.32
5. Step 5: Solve for x
   x = 3,293,628,618.32/52,074.50
6. Step 6: Final answer
   x = 63,248.40