Finding the Fourth Proportional to 13,887.94, 19,160.00 and 9,636.87

Step by Step Solution

1. Step 1: Write the proportion equation
   13,887.94 : 19,160.00 = 9,636.87 : x
2. Step 2: Convert to fraction form
   13,887.94/19,160.00 = 9,636.87/x
3. Step 3: Cross multiply
   13,887.94x = 19,160.00 × 9,636.87
4. Step 4: Simplify right side
   13,887.94x = 184,642,381.02
5. Step 5: Solve for x
   x = 184,642,381.02/13,887.94
6. Step 6: Final answer
   x = 13,295.16