Finding the Fourth Proportional to 74,847.72, 112,174.32 and 30,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,847.72 : 112,174.32 = 30,422.72 : x
2. Step 2: Convert to fraction form
   74,847.72/112,174.32 = 30,422.72/x
3. Step 3: Cross multiply
   74,847.72x = 112,174.32 × 30,422.72
4. Step 4: Simplify right side
   74,847.72x = 3,412,647,928.55
5. Step 5: Solve for x
   x = 3,412,647,928.55/74,847.72
6. Step 6: Final answer
   x = 45,594.55