Finding the Fourth Proportional to 30,878,742.51, 42,612,528.20 and 17,647,698.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,878,742.51 : 42,612,528.20 = 17,647,698.69 : x
2. Step 2: Convert to fraction form
   30,878,742.51/42,612,528.20 = 17,647,698.69/x
3. Step 3: Cross multiply
   30,878,742.51x = 42,612,528.20 × 17,647,698.69
4. Step 4: Simplify right side
   30,878,742.51x = 752,013,058,004,489.62
5. Step 5: Solve for x
   x = 752,013,058,004,489.62/30,878,742.51
6. Step 6: Final answer
   x = 24,353,746.20