Finding the Fourth Proportional to 59.99, 90.01 and 43.76

Step by Step Solution

1. Step 1: Write the proportion equation
   59.99 : 90.01 = 43.76 : x
2. Step 2: Convert to fraction form
   59.99/90.01 = 43.76/x
3. Step 3: Cross multiply
   59.99x = 90.01 × 43.76
4. Step 4: Simplify right side
   59.99x = 3,938.43
5. Step 5: Solve for x
   x = 3,938.43/59.99
6. Step 6: Final answer
   x = 65.65