Finding the Fourth Proportional to 21,672,534.69, 29,909,441.57 and 12,014,742.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,672,534.69 : 29,909,441.57 = 12,014,742.69 : x
2. Step 2: Convert to fraction form
   21,672,534.69/29,909,441.57 = 12,014,742.69/x
3. Step 3: Cross multiply
   21,672,534.69x = 29,909,441.57 × 12,014,742.69
4. Step 4: Simplify right side
   21,672,534.69x = 359,354,244,405,065.94
5. Step 5: Solve for x
   x = 359,354,244,405,065.94/21,672,534.69
6. Step 6: Final answer
   x = 16,581,089.82