Finding the Fourth Proportional to 17,797,485.72, 24,516,603.12 and 15,175,456.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,797,485.72 : 24,516,603.12 = 15,175,456.20 : x
2. Step 2: Convert to fraction form
   17,797,485.72/24,516,603.12 = 15,175,456.20/x
3. Step 3: Cross multiply
   17,797,485.72x = 24,516,603.12 × 15,175,456.20
4. Step 4: Simplify right side
   17,797,485.72x = 372,050,636,820,343.31
5. Step 5: Solve for x
   x = 372,050,636,820,343.31/17,797,485.72
6. Step 6: Final answer
   x = 20,904,673.99