Finding the Fourth Proportional to 933,055,288.43, 1,287,616,248.78 and 503,892,536.42

Step by Step Solution

1. Step 1: Write the proportion equation
   933,055,288.43 : 1,287,616,248.78 = 503,892,536.42 : x
2. Step 2: Convert to fraction form
   933,055,288.43/1,287,616,248.78 = 503,892,536.42/x
3. Step 3: Cross multiply
   933,055,288.43x = 1,287,616,248.78 × 503,892,536.42
4. Step 4: Simplify right side
   933,055,288.43x = 648,820,217,526,921,856
5. Step 5: Solve for x
   x = 648,820,217,526,921,856/933,055,288.43
6. Step 6: Final answer
   x = 695,371,673.66