Finding the Fourth Proportional to 72,322,919.74, 99,806,438.04 and 42,560,147.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,322,919.74 : 99,806,438.04 = 42,560,147.79 : x
2. Step 2: Convert to fraction form
   72,322,919.74/99,806,438.04 = 42,560,147.79/x
3. Step 3: Cross multiply
   72,322,919.74x = 99,806,438.04 × 42,560,147.79
4. Step 4: Simplify right side
   72,322,919.74x = 4,247,776,753,375,878
5. Step 5: Solve for x
   x = 4,247,776,753,375,878/72,322,919.74
6. Step 6: Final answer
   x = 58,733,479.91