Finding the Fourth Proportional to 695,870,485.25, 960,305,066.02 and 409,774,493.57

Step by Step Solution

1. Step 1: Write the proportion equation
   695,870,485.25 : 960,305,066.02 = 409,774,493.57 : x
2. Step 2: Convert to fraction form
   695,870,485.25/960,305,066.02 = 409,774,493.57/x
3. Step 3: Cross multiply
   695,870,485.25x = 960,305,066.02 × 409,774,493.57
4. Step 4: Simplify right side
   695,870,485.25x = 393,508,522,103,336,000
5. Step 5: Solve for x
   x = 393,508,522,103,336,000/695,870,485.25
6. Step 6: Final answer
   x = 565,491,036.69