Finding the Fourth Proportional to 13,830.24, 19,085.04 and 7,861.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,830.24 : 19,085.04 = 7,861.08 : x
2. Step 2: Convert to fraction form
   13,830.24/19,085.04 = 7,861.08/x
3. Step 3: Cross multiply
   13,830.24x = 19,085.04 × 7,861.08
4. Step 4: Simplify right side
   13,830.24x = 150,029,026.24
5. Step 5: Solve for x
   x = 150,029,026.24/13,830.24
6. Step 6: Final answer
   x = 10,847.90