Finding the Fourth Proportional to 101,150,399.28, 139,587,722.58 and 54,740,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,150,399.28 : 139,587,722.58 = 54,740,689.50 : x
2. Step 2: Convert to fraction form
   101,150,399.28/139,587,722.58 = 54,740,689.50/x
3. Step 3: Cross multiply
   101,150,399.28x = 139,587,722.58 × 54,740,689.50
4. Step 4: Simplify right side
   101,150,399.28x = 7,641,128,179,763,920
5. Step 5: Solve for x
   x = 7,641,128,179,763,920/101,150,399.28
6. Step 6: Final answer
   x = 75,542,244.36