Finding the Fourth Proportional to 14,264.74, 19,683.61 and 7,890.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,264.74 : 19,683.61 = 7,890.48 : x
2. Step 2: Convert to fraction form
   14,264.74/19,683.61 = 7,890.48/x
3. Step 3: Cross multiply
   14,264.74x = 19,683.61 × 7,890.48
4. Step 4: Simplify right side
   14,264.74x = 155,313,111.31
5. Step 5: Solve for x
   x = 155,313,111.31/14,264.74
6. Step 6: Final answer
   x = 10,887.90