Finding the Fourth Proportional to 13,406.19, 18,499.23 and 7,741.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,406.19 : 18,499.23 = 7,741.46 : x
2. Step 2: Convert to fraction form
   13,406.19/18,499.23 = 7,741.46/x
3. Step 3: Cross multiply
   13,406.19x = 18,499.23 × 7,741.46
4. Step 4: Simplify right side
   13,406.19x = 143,210,956.58
5. Step 5: Solve for x
   x = 143,210,956.58/13,406.19
6. Step 6: Final answer
   x = 10,682.45