Finding the Fourth Proportional to 489,152,992.10, 734,189,188.73 and 256,150,944.34

Step by Step Solution

1. Step 1: Write the proportion equation
   489,152,992.10 : 734,189,188.73 = 256,150,944.34 : x
2. Step 2: Convert to fraction form
   489,152,992.10/734,189,188.73 = 256,150,944.34/x
3. Step 3: Cross multiply
   489,152,992.10x = 734,189,188.73 × 256,150,944.34
4. Step 4: Simplify right side
   489,152,992.10x = 188,063,254,014,291,776
5. Step 5: Solve for x
   x = 188,063,254,014,291,776/489,152,992.10
6. Step 6: Final answer
   x = 384,467,144.34