Finding the Fourth Proportional to 28,424,155,132.91, 42,568,549,025.34 and 16,447,166,424.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,424,155,132.91 : 42,568,549,025.34 = 16,447,166,424.56 : x
2. Step 2: Convert to fraction form
   28,424,155,132.91/42,568,549,025.34 = 16,447,166,424.56/x
3. Step 3: Cross multiply
   28,424,155,132.91x = 42,568,549,025.34 × 16,447,166,424.56
4. Step 4: Simplify right side
   28,424,155,132.91x = 700,132,010,271,726,108,672
5. Step 5: Solve for x
   x = 700,132,010,271,726,108,672/28,424,155,132.91
6. Step 6: Final answer
   x = 24,631,585,600.27