Finding the Fourth Proportional to 69,907.22, 104,773.31 and 55,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,907.22 : 104,773.31 = 55,057.50 : x
2. Step 2: Convert to fraction form
   69,907.22/104,773.31 = 55,057.50/x
3. Step 3: Cross multiply
   69,907.22x = 104,773.31 × 55,057.50
4. Step 4: Simplify right side
   69,907.22x = 5,768,556,515.33
5. Step 5: Solve for x
   x = 5,768,556,515.33/69,907.22
6. Step 6: Final answer
   x = 82,517.32