Finding the Fourth Proportional to 13,866.90, 19,137.39 and 7,898.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,866.90 : 19,137.39 = 7,898.82 : x
2. Step 2: Convert to fraction form
   13,866.90/19,137.39 = 7,898.82/x
3. Step 3: Cross multiply
   13,866.90x = 19,137.39 × 7,898.82
4. Step 4: Simplify right side
   13,866.90x = 151,162,798.88
5. Step 5: Solve for x
   x = 151,162,798.88/13,866.90
6. Step 6: Final answer
   x = 10,900.98