Finding the Fourth Proportional to 73,870.85, 110,795.78 and 42,178.05

Step by Step Solution

1. Step 1: Write the proportion equation
   73,870.85 : 110,795.78 = 42,178.05 : x
2. Step 2: Convert to fraction form
   73,870.85/110,795.78 = 42,178.05/x
3. Step 3: Cross multiply
   73,870.85x = 110,795.78 × 42,178.05
4. Step 4: Simplify right side
   73,870.85x = 4,673,150,054.07
5. Step 5: Solve for x
   x = 4,673,150,054.07/73,870.85
6. Step 6: Final answer
   x = 63,261.08