Finding the Fourth Proportional to 14,411.57, 19,887.98 and 7,787.57

Step by Step Solution

1. Step 1: Write the proportion equation
   14,411.57 : 19,887.98 = 7,787.57 : x
2. Step 2: Convert to fraction form
   14,411.57/19,887.98 = 7,787.57/x
3. Step 3: Cross multiply
   14,411.57x = 19,887.98 × 7,787.57
4. Step 4: Simplify right side
   14,411.57x = 154,878,997.47
5. Step 5: Solve for x
   x = 154,878,997.47/14,411.57
6. Step 6: Final answer
   x = 10,746.85