Finding the Fourth Proportional to 76,167.12, 105,111.74 and 42,175.55

Step by Step Solution

1. Step 1: Write the proportion equation
   76,167.12 : 105,111.74 = 42,175.55 : x
2. Step 2: Convert to fraction form
   76,167.12/105,111.74 = 42,175.55/x
3. Step 3: Cross multiply
   76,167.12x = 105,111.74 × 42,175.55
4. Step 4: Simplify right side
   76,167.12x = 4,433,144,709.52
5. Step 5: Solve for x
   x = 4,433,144,709.52/76,167.12
6. Step 6: Final answer
   x = 58,202.87