Finding the Fourth Proportional to 13,057,111.20, 19,592,103.60 and 5,873,728.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,057,111.20 : 19,592,103.60 = 5,873,728.80 : x
2. Step 2: Convert to fraction form
   13,057,111.20/19,592,103.60 = 5,873,728.80/x
3. Step 3: Cross multiply
   13,057,111.20x = 19,592,103.60 × 5,873,728.80
4. Step 4: Simplify right side
   13,057,111.20x = 115,078,703,167,903.69
5. Step 5: Solve for x
   x = 115,078,703,167,903.69/13,057,111.20
6. Step 6: Final answer
   x = 8,813,488.79