Finding the Fourth Proportional to 257,139,978.83, 354,847,135.26 and 151,300,249.29

Step by Step Solution

1. Step 1: Write the proportion equation
   257,139,978.83 : 354,847,135.26 = 151,300,249.29 : x
2. Step 2: Convert to fraction form
   257,139,978.83/354,847,135.26 = 151,300,249.29/x
3. Step 3: Cross multiply
   257,139,978.83x = 354,847,135.26 × 151,300,249.29
4. Step 4: Simplify right side
   257,139,978.83x = 53,688,460,024,680,344
5. Step 5: Solve for x
   x = 53,688,460,024,680,344/257,139,978.83
6. Step 6: Final answer
   x = 208,790,792.74