Finding the Fourth Proportional to 12,886.08, 17,796.78 and 10,376.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,886.08 : 17,796.78 = 10,376.46 : x
2. Step 2: Convert to fraction form
   12,886.08/17,796.78 = 10,376.46/x
3. Step 3: Cross multiply
   12,886.08x = 17,796.78 × 10,376.46
4. Step 4: Simplify right side
   12,886.08x = 184,667,575.80
5. Step 5: Solve for x
   x = 184,667,575.80/12,886.08
6. Step 6: Final answer
   x = 14,330.78