Finding the Fourth Proportional to 14,243.01, 19,656.50 and 7,870.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,243.01 : 19,656.50 = 7,870.16 : x
2. Step 2: Convert to fraction form
   14,243.01/19,656.50 = 7,870.16/x
3. Step 3: Cross multiply
   14,243.01x = 19,656.50 × 7,870.16
4. Step 4: Simplify right side
   14,243.01x = 154,699,662.41
5. Step 5: Solve for x
   x = 154,699,662.41/14,243.01
6. Step 6: Final answer
   x = 10,861.44