Finding the Fourth Proportional to 14,139.95, 19,513.35 and 7,766.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,139.95 : 19,513.35 = 7,766.37 : x
2. Step 2: Convert to fraction form
   14,139.95/19,513.35 = 7,766.37/x
3. Step 3: Cross multiply
   14,139.95x = 19,513.35 × 7,766.37
4. Step 4: Simplify right side
   14,139.95x = 151,547,896.04
5. Step 5: Solve for x
   x = 151,547,896.04/14,139.95
6. Step 6: Final answer
   x = 10,717.71