Finding the Fourth Proportional to 12,888.06, 17,799.54 and 10,378.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,888.06 : 17,799.54 = 10,378.50 : x
2. Step 2: Convert to fraction form
   12,888.06/17,799.54 = 10,378.50/x
3. Step 3: Cross multiply
   12,888.06x = 17,799.54 × 10,378.50
4. Step 4: Simplify right side
   12,888.06x = 184,732,525.89
5. Step 5: Solve for x
   x = 184,732,525.89/12,888.06
6. Step 6: Final answer
   x = 14,333.62