Finding the Fourth Proportional to 13,763.79, 18,994.23 and 7,476.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,763.79 : 18,994.23 = 7,476.15 : x
2. Step 2: Convert to fraction form
   13,763.79/18,994.23 = 7,476.15/x
3. Step 3: Cross multiply
   13,763.79x = 18,994.23 × 7,476.15
4. Step 4: Simplify right side
   13,763.79x = 142,003,712.61
5. Step 5: Solve for x
   x = 142,003,712.61/13,763.79
6. Step 6: Final answer
   x = 10,317.20