Finding the Fourth Proportional to 11,636,857.70, 17,447,171.43 and 5,156,408.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,636,857.70 : 17,447,171.43 = 5,156,408.42 : x
2. Step 2: Convert to fraction form
   11,636,857.70/17,447,171.43 = 5,156,408.42/x
3. Step 3: Cross multiply
   11,636,857.70x = 17,447,171.43 × 5,156,408.42
4. Step 4: Simplify right side
   11,636,857.70x = 89,964,741,666,835.44
5. Step 5: Solve for x
   x = 89,964,741,666,835.44/11,636,857.70
6. Step 6: Final answer
   x = 7,731,016.74