Finding the Fourth Proportional to 93.33, 128.61 and 72.52

Step by Step Solution

1. Step 1: Write the proportion equation
   93.33 : 128.61 = 72.52 : x
2. Step 2: Convert to fraction form
   93.33/128.61 = 72.52/x
3. Step 3: Cross multiply
   93.33x = 128.61 × 72.52
4. Step 4: Simplify right side
   93.33x = 9,326.48
5. Step 5: Solve for x
   x = 9,326.48/93.33
6. Step 6: Final answer
   x = 99.93