Finding the Fourth Proportional to 99.83, 149.82 and 92.04

Step by Step Solution

1. Step 1: Write the proportion equation
   99.83 : 149.82 = 92.04 : x
2. Step 2: Convert to fraction form
   99.83/149.82 = 92.04/x
3. Step 3: Cross multiply
   99.83x = 149.82 × 92.04
4. Step 4: Simplify right side
   99.83x = 13,788.53
5. Step 5: Solve for x
   x = 13,788.53/99.83
6. Step 6: Final answer
   x = 138.12