Finding the Fourth Proportional to 314,146,149.76, 471,251,404.56 and 120,220,667.20

Step by Step Solution

1. Step 1: Write the proportion equation
   314,146,149.76 : 471,251,404.56 = 120,220,667.20 : x
2. Step 2: Convert to fraction form
   314,146,149.76/471,251,404.56 = 120,220,667.20/x
3. Step 3: Cross multiply
   314,146,149.76x = 471,251,404.56 × 120,220,667.20
4. Step 4: Simplify right side
   314,146,149.76x = 56,654,158,275,140,328
5. Step 5: Solve for x
   x = 56,654,158,275,140,328/314,146,149.76
6. Step 6: Final answer
   x = 180,343,315.74