Finding the Fourth Proportional to 99,293,550.89, 137,026,361.25 and 54,644,663.66

Step by Step Solution

1. Step 1: Write the proportion equation
   99,293,550.89 : 137,026,361.25 = 54,644,663.66 : x
2. Step 2: Convert to fraction form
   99,293,550.89/137,026,361.25 = 54,644,663.66/x
3. Step 3: Cross multiply
   99,293,550.89x = 137,026,361.25 × 54,644,663.66
4. Step 4: Simplify right side
   99,293,550.89x = 7,487,759,422,374,776
5. Step 5: Solve for x
   x = 7,487,759,422,374,776/99,293,550.89
6. Step 6: Final answer
   x = 75,410,329.83