Finding the Fourth Proportional to 99.29, 147.72 and 93.53

Step by Step Solution

1. Step 1: Write the proportion equation
   99.29 : 147.72 = 93.53 : x
2. Step 2: Convert to fraction form
   99.29/147.72 = 93.53/x
3. Step 3: Cross multiply
   99.29x = 147.72 × 93.53
4. Step 4: Simplify right side
   99.29x = 13,816.25
5. Step 5: Solve for x
   x = 13,816.25/99.29
6. Step 6: Final answer
   x = 139.15