Finding the Fourth Proportional to 220,086.56, 330,045.60 and 93,647.72

Step by Step Solution

1. Step 1: Write the proportion equation
   220,086.56 : 330,045.60 = 93,647.72 : x
2. Step 2: Convert to fraction form
   220,086.56/330,045.60 = 93,647.72/x
3. Step 3: Cross multiply
   220,086.56x = 330,045.60 × 93,647.72
4. Step 4: Simplify right side
   220,086.56x = 30,908,017,936.03
5. Step 5: Solve for x
   x = 30,908,017,936.03/220,086.56
6. Step 6: Final answer
   x = 140,435.74