Finding the Fourth Proportional to 10,898.57, 16,345.42 and 4,322.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,898.57 : 16,345.42 = 4,322.99 : x
2. Step 2: Convert to fraction form
   10,898.57/16,345.42 = 4,322.99/x
3. Step 3: Cross multiply
   10,898.57x = 16,345.42 × 4,322.99
4. Step 4: Simplify right side
   10,898.57x = 70,661,117.26
5. Step 5: Solve for x
   x = 70,661,117.26/10,898.57
6. Step 6: Final answer
   x = 6,483.52