Finding the Fourth Proportional to 98.00, 146.52 and 83.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98.00 : 146.52 = 83.72 : x
2. Step 2: Convert to fraction form
   98.00/146.52 = 83.72/x
3. Step 3: Cross multiply
   98.00x = 146.52 × 83.72
4. Step 4: Simplify right side
   98.00x = 12,265.92
5. Step 5: Solve for x
   x = 12,265.92/98.00
6. Step 6: Final answer
   x = 125.17