Finding the Fourth Proportional to 498.34, 747.48 and 156.34

Step by Step Solution

1. Step 1: Write the proportion equation
   498.34 : 747.48 = 156.34 : x
2. Step 2: Convert to fraction form
   498.34/747.48 = 156.34/x
3. Step 3: Cross multiply
   498.34x = 747.48 × 156.34
4. Step 4: Simplify right side
   498.34x = 116,861.02
5. Step 5: Solve for x
   x = 116,861.02/498.34
6. Step 6: Final answer
   x = 234.50