Finding the Fourth Proportional to 84,216.50, 116,238.31 and 55,541.35

Step by Step Solution

1. Step 1: Write the proportion equation
   84,216.50 : 116,238.31 = 55,541.35 : x
2. Step 2: Convert to fraction form
   84,216.50/116,238.31 = 55,541.35/x
3. Step 3: Cross multiply
   84,216.50x = 116,238.31 × 55,541.35
4. Step 4: Simplify right side
   84,216.50x = 6,456,032,659.12
5. Step 5: Solve for x
   x = 6,456,032,659.12/84,216.50
6. Step 6: Final answer
   x = 76,659.95