Finding the Fourth Proportional to 76,466.79, 105,520.59 and 42,477.44

Step by Step Solution

1. Step 1: Write the proportion equation
   76,466.79 : 105,520.59 = 42,477.44 : x
2. Step 2: Convert to fraction form
   76,466.79/105,520.59 = 42,477.44/x
3. Step 3: Cross multiply
   76,466.79x = 105,520.59 × 42,477.44
4. Step 4: Simplify right side
   76,466.79x = 4,482,244,002.89
5. Step 5: Solve for x
   x = 4,482,244,002.89/76,466.79
6. Step 6: Final answer
   x = 58,616.87