Finding the Fourth Proportional to 99,293,557.02, 137,026,369.72 and 54,644,669.76

Step by Step Solution

1. Step 1: Write the proportion equation
   99,293,557.02 : 137,026,369.72 = 54,644,669.76 : x
2. Step 2: Convert to fraction form
   99,293,557.02/137,026,369.72 = 54,644,669.76/x
3. Step 3: Cross multiply
   99,293,557.02x = 137,026,369.72 × 54,644,669.76
4. Step 4: Simplify right side
   99,293,557.02x = 7,487,760,721,761,063
5. Step 5: Solve for x
   x = 7,487,760,721,761,063/99,293,557.02
6. Step 6: Final answer
   x = 75,410,338.26