Finding the Fourth Proportional to 78,249.34, 107,984.14 and 42,439.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,249.34 : 107,984.14 = 42,439.34 : x
2. Step 2: Convert to fraction form
   78,249.34/107,984.14 = 42,439.34/x
3. Step 3: Cross multiply
   78,249.34x = 107,984.14 × 42,439.34
4. Step 4: Simplify right side
   78,249.34x = 4,582,775,632.07
5. Step 5: Solve for x
   x = 4,582,775,632.07/78,249.34
6. Step 6: Final answer
   x = 58,566.32