Finding the Fourth Proportional to 78,041.87, 107,697.87 and 42,231.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,041.87 : 107,697.87 = 42,231.88 : x
2. Step 2: Convert to fraction form
   78,041.87/107,697.87 = 42,231.88/x
3. Step 3: Cross multiply
   78,041.87x = 107,697.87 × 42,231.88
4. Step 4: Simplify right side
   78,041.87x = 4,548,283,522.10
5. Step 5: Solve for x
   x = 4,548,283,522.10/78,041.87
6. Step 6: Final answer
   x = 58,280.04