Finding the Fourth Proportional to 19,100.51, 26,353.32 and 12,386.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,100.51 : 26,353.32 = 12,386.42 : x
2. Step 2: Convert to fraction form
   19,100.51/26,353.32 = 12,386.42/x
3. Step 3: Cross multiply
   19,100.51x = 26,353.32 × 12,386.42
4. Step 4: Simplify right side
   19,100.51x = 326,423,289.91
5. Step 5: Solve for x
   x = 326,423,289.91/19,100.51
6. Step 6: Final answer
   x = 17,089.77