Finding the Fourth Proportional to 6,870,978,303.60, 10,309,490,764.20 and 3,188,588,185.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870,978,303.60 : 10,309,490,764.20 = 3,188,588,185.20 : x
2. Step 2: Convert to fraction form
   6,870,978,303.60/10,309,490,764.20 = 3,188,588,185.20/x
3. Step 3: Cross multiply
   6,870,978,303.60x = 10,309,490,764.20 × 3,188,588,185.20
4. Step 4: Simplify right side
   6,870,978,303.60x = 32,872,720,446,156,640,256
5. Step 5: Solve for x
   x = 32,872,720,446,156,640,256/6,870,978,303.60
6. Step 6: Final answer
   x = 4,784,285,292.96