Finding the Fourth Proportional to 80,538,153.34, 111,139,523.30 and 49,228,625.30

Step by Step Solution

1. Step 1: Write the proportion equation
   80,538,153.34 : 111,139,523.30 = 49,228,625.30 : x
2. Step 2: Convert to fraction form
   80,538,153.34/111,139,523.30 = 49,228,625.30/x
3. Step 3: Cross multiply
   80,538,153.34x = 111,139,523.30 × 49,228,625.30
4. Step 4: Simplify right side
   80,538,153.34x = 5,471,245,948,556,319
5. Step 5: Solve for x
   x = 5,471,245,948,556,319/80,538,153.34
6. Step 6: Final answer
   x = 67,933,590.75