Finding the Fourth Proportional to 16,499,450.21, 22,768,898.78 and 9,156,856.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499,450.21 : 22,768,898.78 = 9,156,856.91 : x
2. Step 2: Convert to fraction form
   16,499,450.21/22,768,898.78 = 9,156,856.91/x
3. Step 3: Cross multiply
   16,499,450.21x = 22,768,898.78 × 9,156,856.91
4. Step 4: Simplify right side
   16,499,450.21x = 208,491,548,035,781.19
5. Step 5: Solve for x
   x = 208,491,548,035,781.19/16,499,450.21
6. Step 6: Final answer
   x = 12,636,272.45