Finding the Fourth Proportional to 498.39, 747.72 and 151.71

Step by Step Solution

1. Step 1: Write the proportion equation
   498.39 : 747.72 = 151.71 : x
2. Step 2: Convert to fraction form
   498.39/747.72 = 151.71/x
3. Step 3: Cross multiply
   498.39x = 747.72 × 151.71
4. Step 4: Simplify right side
   498.39x = 113,432.10
5. Step 5: Solve for x
   x = 113,432.10/498.39
6. Step 6: Final answer
   x = 227.60