Finding the Fourth Proportional to 92,778.01, 139,123.27 and 55,328.37

Step by Step Solution

1. Step 1: Write the proportion equation
   92,778.01 : 139,123.27 = 55,328.37 : x
2. Step 2: Convert to fraction form
   92,778.01/139,123.27 = 55,328.37/x
3. Step 3: Cross multiply
   92,778.01x = 139,123.27 × 55,328.37
4. Step 4: Simplify right side
   92,778.01x = 7,697,463,305.62
5. Step 5: Solve for x
   x = 7,697,463,305.62/92,778.01
6. Step 6: Final answer
   x = 82,966.46