Finding the Fourth Proportional to 13,862.74, 19,128.81 and 7,893.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,862.74 : 19,128.81 = 7,893.58 : x
2. Step 2: Convert to fraction form
   13,862.74/19,128.81 = 7,893.58/x
3. Step 3: Cross multiply
   13,862.74x = 19,128.81 × 7,893.58
4. Step 4: Simplify right side
   13,862.74x = 150,994,792.04
5. Step 5: Solve for x
   x = 150,994,792.04/13,862.74
6. Step 6: Final answer
   x = 10,892.13