Finding the Fourth Proportional to 12,991.82, 19,482.89 and 4,669.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,991.82 : 19,482.89 = 4,669.56 : x
2. Step 2: Convert to fraction form
   12,991.82/19,482.89 = 4,669.56/x
3. Step 3: Cross multiply
   12,991.82x = 19,482.89 × 4,669.56
4. Step 4: Simplify right side
   12,991.82x = 90,976,500.48
5. Step 5: Solve for x
   x = 90,976,500.48/12,991.82
6. Step 6: Final answer
   x = 7,002.60