Finding the Fourth Proportional to 59,955.99, 89,835.56 and 20,491.57

Step by Step Solution

1. Step 1: Write the proportion equation
   59,955.99 : 89,835.56 = 20,491.57 : x
2. Step 2: Convert to fraction form
   59,955.99/89,835.56 = 20,491.57/x
3. Step 3: Cross multiply
   59,955.99x = 89,835.56 × 20,491.57
4. Step 4: Simplify right side
   59,955.99x = 1,840,871,666.23
5. Step 5: Solve for x
   x = 1,840,871,666.23/59,955.99
6. Step 6: Final answer
   x = 30,703.72