Finding the Fourth Proportional to 99.32, 149.18 and 60.89

Step by Step Solution

1. Step 1: Write the proportion equation
   99.32 : 149.18 = 60.89 : x
2. Step 2: Convert to fraction form
   99.32/149.18 = 60.89/x
3. Step 3: Cross multiply
   99.32x = 149.18 × 60.89
4. Step 4: Simplify right side
   99.32x = 9,082.52
5. Step 5: Solve for x
   x = 9,082.52/99.32
6. Step 6: Final answer
   x = 91.45