Finding the Fourth Proportional to 72.86, 100.52 and 59.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72.86 : 100.52 = 59.08 : x
2. Step 2: Convert to fraction form
   72.86/100.52 = 59.08/x
3. Step 3: Cross multiply
   72.86x = 100.52 × 59.08
4. Step 4: Simplify right side
   72.86x = 5,938.72
5. Step 5: Solve for x
   x = 5,938.72/72.86
6. Step 6: Final answer
   x = 81.51