Finding the Fourth Proportional to 318,870.56, 440,061.32 and 175,630.57

Step by Step Solution

1. Step 1: Write the proportion equation
   318,870.56 : 440,061.32 = 175,630.57 : x
2. Step 2: Convert to fraction form
   318,870.56/440,061.32 = 175,630.57/x
3. Step 3: Cross multiply
   318,870.56x = 440,061.32 × 175,630.57
4. Step 4: Simplify right side
   318,870.56x = 77,288,220,466.55
5. Step 5: Solve for x
   x = 77,288,220,466.55/318,870.56
6. Step 6: Final answer
   x = 242,381.17