Finding the Fourth Proportional to 703,608,196.25, 970,575,898.82 and 438,830,502.63

Step by Step Solution

1. Step 1: Write the proportion equation
   703,608,196.25 : 970,575,898.82 = 438,830,502.63 : x
2. Step 2: Convert to fraction form
   703,608,196.25/970,575,898.82 = 438,830,502.63/x
3. Step 3: Cross multiply
   703,608,196.25x = 970,575,898.82 × 438,830,502.63
4. Step 4: Simplify right side
   703,608,196.25x = 425,918,309,517,550,464
5. Step 5: Solve for x
   x = 425,918,309,517,550,464/703,608,196.25
6. Step 6: Final answer
   x = 605,334,491.26