Finding the Fourth Proportional to 69,911.98, 104,780.40 and 55,062.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,911.98 : 104,780.40 = 55,062.25 : x
2. Step 2: Convert to fraction form
   69,911.98/104,780.40 = 55,062.25/x
3. Step 3: Cross multiply
   69,911.98x = 104,780.40 × 55,062.25
4. Step 4: Simplify right side
   69,911.98x = 5,769,444,579.90
5. Step 5: Solve for x
   x = 5,769,444,579.90/69,911.98
6. Step 6: Final answer
   x = 82,524.41