Finding the Fourth Proportional to 72,322,919.67, 99,806,437.95 and 42,560,147.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72,322,919.67 : 99,806,437.95 = 42,560,147.73 : x
2. Step 2: Convert to fraction form
   72,322,919.67/99,806,437.95 = 42,560,147.73/x
3. Step 3: Cross multiply
   72,322,919.67x = 99,806,437.95 × 42,560,147.73
4. Step 4: Simplify right side
   72,322,919.67x = 4,247,776,743,557,078
5. Step 5: Solve for x
   x = 4,247,776,743,557,078/72,322,919.67
6. Step 6: Final answer
   x = 58,733,479.83