Finding the Fourth Proportional to 30,965,868.96, 42,734,357.28 and 17,215,062.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,965,868.96 : 42,734,357.28 = 17,215,062.72 : x
2. Step 2: Convert to fraction form
   30,965,868.96/42,734,357.28 = 17,215,062.72/x
3. Step 3: Cross multiply
   30,965,868.96x = 42,734,357.28 × 17,215,062.72
4. Step 4: Simplify right side
   30,965,868.96x = 735,674,640,874,088.62
5. Step 5: Solve for x
   x = 735,674,640,874,088.62/30,965,868.96
6. Step 6: Final answer
   x = 23,757,597.17