Finding the Fourth Proportional to 498.52, 747.72 and 133.34

Step by Step Solution

1. Step 1: Write the proportion equation
   498.52 : 747.72 = 133.34 : x
2. Step 2: Convert to fraction form
   498.52/747.72 = 133.34/x
3. Step 3: Cross multiply
   498.52x = 747.72 × 133.34
4. Step 4: Simplify right side
   498.52x = 99,699.12
5. Step 5: Solve for x
   x = 99,699.12/498.52
6. Step 6: Final answer
   x = 199.99