Finding the Fourth Proportional to 102.47, 153.72 and 34.00

Step by Step Solution

1. Step 1: Write the proportion equation
   102.47 : 153.72 = 34.00 : x
2. Step 2: Convert to fraction form
   102.47/153.72 = 34.00/x
3. Step 3: Cross multiply
   102.47x = 153.72 × 34.00
4. Step 4: Simplify right side
   102.47x = 5,226.10
5. Step 5: Solve for x
   x = 5,226.10/102.47
6. Step 6: Final answer
   x = 51.00