Finding the Fourth Proportional to 99.75, 149.72 and 59.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99.75 : 149.72 = 59.25 : x
2. Step 2: Convert to fraction form
   99.75/149.72 = 59.25/x
3. Step 3: Cross multiply
   99.75x = 149.72 × 59.25
4. Step 4: Simplify right side
   99.75x = 8,870.61
5. Step 5: Solve for x
   x = 8,870.61/99.75
6. Step 6: Final answer
   x = 88.93