Finding the Fourth Proportional to 72,322,919.81, 99,806,438.12 and 42,560,147.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,322,919.81 : 99,806,438.12 = 42,560,147.84 : x
2. Step 2: Convert to fraction form
   72,322,919.81/99,806,438.12 = 42,560,147.84/x
3. Step 3: Cross multiply
   72,322,919.81x = 99,806,438.12 × 42,560,147.84
4. Step 4: Simplify right side
   72,322,919.81x = 4,247,776,761,771,012
5. Step 5: Solve for x
   x = 4,247,776,761,771,012/72,322,919.81
6. Step 6: Final answer
   x = 58,733,479.97