Finding the Fourth Proportional to 74,766.08, 103,173.72 and 42,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   74,766.08 : 103,173.72 = 42,912.56 : x
2. Step 2: Convert to fraction form
   74,766.08/103,173.72 = 42,912.56/x
3. Step 3: Cross multiply
   74,766.08x = 103,173.72 × 42,912.56
4. Step 4: Simplify right side
   74,766.08x = 4,427,448,449.92
5. Step 5: Solve for x
   x = 4,427,448,449.92/74,766.08
6. Step 6: Final answer
   x = 59,217.34