Finding the Fourth Proportional to 71.86, 99.06 and 58.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71.86 : 99.06 = 58.82 : x
2. Step 2: Convert to fraction form
   71.86/99.06 = 58.82/x
3. Step 3: Cross multiply
   71.86x = 99.06 × 58.82
4. Step 4: Simplify right side
   71.86x = 5,826.71
5. Step 5: Solve for x
   x = 5,826.71/71.86
6. Step 6: Final answer
   x = 81.08