Finding the Fourth Proportional to 16,861,167.56, 23,269,763.14 and 13,405,028.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861,167.56 : 23,269,763.14 = 13,405,028.74 : x
2. Step 2: Convert to fraction form
   16,861,167.56/23,269,763.14 = 13,405,028.74/x
3. Step 3: Cross multiply
   16,861,167.56x = 23,269,763.14 × 13,405,028.74
4. Step 4: Simplify right side
   16,861,167.56x = 311,931,843,573,005.69
5. Step 5: Solve for x
   x = 311,931,843,573,005.69/16,861,167.56
6. Step 6: Final answer
   x = 18,500,014.45