Finding the Fourth Proportional to 12,864,196.16, 19,271,067.52 and 7,461,496.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,864,196.16 : 19,271,067.52 = 7,461,496.16 : x
2. Step 2: Convert to fraction form
   12,864,196.16/19,271,067.52 = 7,461,496.16/x
3. Step 3: Cross multiply
   12,864,196.16x = 19,271,067.52 × 7,461,496.16
4. Step 4: Simplify right side
   12,864,196.16x = 143,790,996,299,580.72
5. Step 5: Solve for x
   x = 143,790,996,299,580.72/12,864,196.16
6. Step 6: Final answer
   x = 11,177,612.23