Finding the Fourth Proportional to 613,127,196.89, 845,989,224.58 and 352,316,424.41

Step by Step Solution

1. Step 1: Write the proportion equation
   613,127,196.89 : 845,989,224.58 = 352,316,424.41 : x
2. Step 2: Convert to fraction form
   613,127,196.89/845,989,224.58 = 352,316,424.41/x
3. Step 3: Cross multiply
   613,127,196.89x = 845,989,224.58 × 352,316,424.41
4. Step 4: Simplify right side
   613,127,196.89x = 298,055,898,693,414,144
5. Step 5: Solve for x
   x = 298,055,898,693,414,144/613,127,196.89
6. Step 6: Final answer
   x = 486,124,086.82