Finding the Fourth Proportional to 72.42, 108.84 and 59.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72.42 : 108.84 = 59.06 : x
2. Step 2: Convert to fraction form
   72.42/108.84 = 59.06/x
3. Step 3: Cross multiply
   72.42x = 108.84 × 59.06
4. Step 4: Simplify right side
   72.42x = 6,428.09
5. Step 5: Solve for x
   x = 6,428.09/72.42
6. Step 6: Final answer
   x = 88.76