Finding the Fourth Proportional to 13,146,723.30, 19,682,760.15 and 13,146,723.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,146,723.30 : 19,682,760.15 = 13,146,723.30 : x
2. Step 2: Convert to fraction form
   13,146,723.30/19,682,760.15 = 13,146,723.30/x
3. Step 3: Cross multiply
   13,146,723.30x = 19,682,760.15 × 13,146,723.30
4. Step 4: Simplify right side
   13,146,723.30x = 258,763,801,472,316.50
5. Step 5: Solve for x
   x = 258,763,801,472,316.50/13,146,723.30
6. Step 6: Final answer
   x = 19,682,760.15