Finding the Fourth Proportional to 10,981,365.56, 16,448,875.42 and 8,810,638.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981,365.56 : 16,448,875.42 = 8,810,638.20 : x
2. Step 2: Convert to fraction form
   10,981,365.56/16,448,875.42 = 8,810,638.20/x
3. Step 3: Cross multiply
   10,981,365.56x = 16,448,875.42 × 8,810,638.20
4. Step 4: Simplify right side
   10,981,365.56x = 144,925,090,122,493.03
5. Step 5: Solve for x
   x = 144,925,090,122,493.03/10,981,365.56
6. Step 6: Final answer
   x = 13,197,365.06