Finding the Fourth Proportional to 10,969,866.06, 16,461,099.99 and 8,566,965.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969,866.06 : 16,461,099.99 = 8,566,965.42 : x
2. Step 2: Convert to fraction form
   10,969,866.06/16,461,099.99 = 8,566,965.42/x
3. Step 3: Cross multiply
   10,969,866.06x = 16,461,099.99 × 8,566,965.42
4. Step 4: Simplify right side
   10,969,866.06x = 141,021,674,389,492.34
5. Step 5: Solve for x
   x = 141,021,674,389,492.34/10,969,866.06
6. Step 6: Final answer
   x = 12,855,368.85