Finding the Fourth Proportional to 498,116.72, 747,119.72 and 178,255.67

Step by Step Solution

1. Step 1: Write the proportion equation
   498,116.72 : 747,119.72 = 178,255.67 : x
2. Step 2: Convert to fraction form
   498,116.72/747,119.72 = 178,255.67/x
3. Step 3: Cross multiply
   498,116.72x = 747,119.72 × 178,255.67
4. Step 4: Simplify right side
   498,116.72x = 133,178,326,258.81
5. Step 5: Solve for x
   x = 133,178,326,258.81/498,116.72
6. Step 6: Final answer
   x = 267,363.69