Finding the Fourth Proportional to 101,315,458.50, 139,815,452.33 and 54,905,712.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,315,458.50 : 139,815,452.33 = 54,905,712.42 : x
2. Step 2: Convert to fraction form
   101,315,458.50/139,815,452.33 = 54,905,712.42/x
3. Step 3: Cross multiply
   101,315,458.50x = 139,815,452.33 × 54,905,712.42
4. Step 4: Simplify right side
   101,315,458.50x = 7,676,667,017,172,414
5. Step 5: Solve for x
   x = 7,676,667,017,172,414/101,315,458.50
6. Step 6: Final answer
   x = 75,769,947.95