Finding the Fourth Proportional to 10,559.14, 14,559.69 and 7,898.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,559.14 : 14,559.69 = 7,898.02 : x
2. Step 2: Convert to fraction form
   10,559.14/14,559.69 = 7,898.02/x
3. Step 3: Cross multiply
   10,559.14x = 14,559.69 × 7,898.02
4. Step 4: Simplify right side
   10,559.14x = 114,992,722.81
5. Step 5: Solve for x
   x = 114,992,722.81/10,559.14
6. Step 6: Final answer
   x = 10,890.35