Finding the Fourth Proportional to 84,185.98, 116,139.94 and 55,468.80

Step by Step Solution

1. Step 1: Write the proportion equation
   84,185.98 : 116,139.94 = 55,468.80 : x
2. Step 2: Convert to fraction form
   84,185.98/116,139.94 = 55,468.80/x
3. Step 3: Cross multiply
   84,185.98x = 116,139.94 × 55,468.80
4. Step 4: Simplify right side
   84,185.98x = 6,442,143,103.87
5. Step 5: Solve for x
   x = 6,442,143,103.87/84,185.98
6. Step 6: Final answer
   x = 76,522.75