Finding the Fourth Proportional to 67,378.82, 101,155.71 and 51,807.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,378.82 : 101,155.71 = 51,807.38 : x
2. Step 2: Convert to fraction form
   67,378.82/101,155.71 = 51,807.38/x
3. Step 3: Cross multiply
   67,378.82x = 101,155.71 × 51,807.38
4. Step 4: Simplify right side
   67,378.82x = 5,240,612,307.14
5. Step 5: Solve for x
   x = 5,240,612,307.14/67,378.82
6. Step 6: Final answer
   x = 77,778.33