Finding the Fourth Proportional to 12,926.38, 19,389.64 and 4,606.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926.38 : 19,389.64 = 4,606.72 : x
2. Step 2: Convert to fraction form
   12,926.38/19,389.64 = 4,606.72/x
3. Step 3: Cross multiply
   12,926.38x = 19,389.64 × 4,606.72
4. Step 4: Simplify right side
   12,926.38x = 89,322,642.38
5. Step 5: Solve for x
   x = 89,322,642.38/12,926.38
6. Step 6: Final answer
   x = 6,910.10