Finding the Fourth Proportional to 99,293,561.04, 137,026,375.24 and 54,644,673.76

Step by Step Solution

1. Step 1: Write the proportion equation
   99,293,561.04 : 137,026,375.24 = 54,644,673.76 : x
2. Step 2: Convert to fraction form
   99,293,561.04/137,026,375.24 = 54,644,673.76/x
3. Step 3: Cross multiply
   99,293,561.04x = 137,026,375.24 × 54,644,673.76
4. Step 4: Simplify right side
   99,293,561.04x = 7,487,761,571,505,142
5. Step 5: Solve for x
   x = 7,487,761,571,505,142/99,293,561.04
6. Step 6: Final answer
   x = 75,410,343.76