Finding the Fourth Proportional to 67,974.48, 93,699.72 and 55,377.36

Step by Step Solution

1. Step 1: Write the proportion equation
   67,974.48 : 93,699.72 = 55,377.36 : x
2. Step 2: Convert to fraction form
   67,974.48/93,699.72 = 55,377.36/x
3. Step 3: Cross multiply
   67,974.48x = 93,699.72 × 55,377.36
4. Step 4: Simplify right side
   67,974.48x = 5,188,843,126.34
5. Step 5: Solve for x
   x = 5,188,843,126.34/67,974.48
6. Step 6: Final answer
   x = 76,335.16