Finding the Fourth Proportional to 74,493.27, 102,806.55 and 42,672.42

Step by Step Solution

1. Step 1: Write the proportion equation
   74,493.27 : 102,806.55 = 42,672.42 : x
2. Step 2: Convert to fraction form
   74,493.27/102,806.55 = 42,672.42/x
3. Step 3: Cross multiply
   74,493.27x = 102,806.55 × 42,672.42
4. Step 4: Simplify right side
   74,493.27x = 4,387,004,280.35
5. Step 5: Solve for x
   x = 4,387,004,280.35/74,493.27
6. Step 6: Final answer
   x = 58,891.28