Finding the Fourth Proportional to 12,953,359.43, 17,868,142.35 and 8,369,680.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,953,359.43 : 17,868,142.35 = 8,369,680.80 : x
2. Step 2: Convert to fraction form
   12,953,359.43/17,868,142.35 = 8,369,680.80/x
3. Step 3: Cross multiply
   12,953,359.43x = 17,868,142.35 × 8,369,680.80
4. Step 4: Simplify right side
   12,953,359.43x = 149,550,647,958,461.88
5. Step 5: Solve for x
   x = 149,550,647,958,461.88/12,953,359.43
6. Step 6: Final answer
   x = 11,545,317.55