Finding the Fourth Proportional to 124,261,974.32, 171,443,524.73 and 72,040,589.06

Step by Step Solution

1. Step 1: Write the proportion equation
   124,261,974.32 : 171,443,524.73 = 72,040,589.06 : x
2. Step 2: Convert to fraction form
   124,261,974.32/171,443,524.73 = 72,040,589.06/x
3. Step 3: Cross multiply
   124,261,974.32x = 171,443,524.73 × 72,040,589.06
4. Step 4: Simplify right side
   124,261,974.32x = 12,350,892,510,854,458
5. Step 5: Solve for x
   x = 12,350,892,510,854,458/124,261,974.32
6. Step 6: Final answer
   x = 99,393,982.58