Finding the Fourth Proportional to 12,861.58, 19,289.02 and 5,462.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.58 : 19,289.02 = 5,462.22 : x
2. Step 2: Convert to fraction form
   12,861.58/19,289.02 = 5,462.22/x
3. Step 3: Cross multiply
   12,861.58x = 19,289.02 × 5,462.22
4. Step 4: Simplify right side
   12,861.58x = 105,360,870.82
5. Step 5: Solve for x
   x = 105,360,870.82/12,861.58
6. Step 6: Final answer
   x = 8,191.91