Finding the Fourth Proportional to 100.98, 152.28 and 92.34

Step by Step Solution

1. Step 1: Write the proportion equation
   100.98 : 152.28 = 92.34 : x
2. Step 2: Convert to fraction form
   100.98/152.28 = 92.34/x
3. Step 3: Cross multiply
   100.98x = 152.28 × 92.34
4. Step 4: Simplify right side
   100.98x = 14,061.54
5. Step 5: Solve for x
   x = 14,061.54/100.98
6. Step 6: Final answer
   x = 139.25