Finding the Fourth Proportional to 67,576.72, 101,436.36 and 55,238.80

Step by Step Solution

1. Step 1: Write the proportion equation
   67,576.72 : 101,436.36 = 55,238.80 : x
2. Step 2: Convert to fraction form
   67,576.72/101,436.36 = 55,238.80/x
3. Step 3: Cross multiply
   67,576.72x = 101,436.36 × 55,238.80
4. Step 4: Simplify right side
   67,576.72x = 5,603,222,802.77
5. Step 5: Solve for x
   x = 5,603,222,802.77/67,576.72
6. Step 6: Final answer
   x = 82,916.47