Finding the Fourth Proportional to 109.09, 150.56 and 59.98

Step by Step Solution

1. Step 1: Write the proportion equation
   109.09 : 150.56 = 59.98 : x
2. Step 2: Convert to fraction form
   109.09/150.56 = 59.98/x
3. Step 3: Cross multiply
   109.09x = 150.56 × 59.98
4. Step 4: Simplify right side
   109.09x = 9,030.63
5. Step 5: Solve for x
   x = 9,030.63/109.09
6. Step 6: Final answer
   x = 82.78