Finding the Fourth Proportional to 123,189,062.81, 169,990,134.01 and 72,944,267.49

Step by Step Solution

1. Step 1: Write the proportion equation
   123,189,062.81 : 169,990,134.01 = 72,944,267.49 : x
2. Step 2: Convert to fraction form
   123,189,062.81/169,990,134.01 = 72,944,267.49/x
3. Step 3: Cross multiply
   123,189,062.81x = 169,990,134.01 × 72,944,267.49
4. Step 4: Simplify right side
   123,189,062.81x = 12,399,805,805,704,024
5. Step 5: Solve for x
   x = 12,399,805,805,704,024/123,189,062.81
6. Step 6: Final answer
   x = 100,656,710.29