Finding the Fourth Proportional to 13,994.04, 19,311.58 and 7,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,994.04 : 19,311.58 = 7,620.56 : x
2. Step 2: Convert to fraction form
   13,994.04/19,311.58 = 7,620.56/x
3. Step 3: Cross multiply
   13,994.04x = 19,311.58 × 7,620.56
4. Step 4: Simplify right side
   13,994.04x = 147,165,015.98
5. Step 5: Solve for x
   x = 147,165,015.98/13,994.04
6. Step 6: Final answer
   x = 10,516.27