Finding the Fourth Proportional to 22,513.32, 31,064.58 and 13,558.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,513.32 : 31,064.58 = 13,558.68 : x
2. Step 2: Convert to fraction form
   22,513.32/31,064.58 = 13,558.68/x
3. Step 3: Cross multiply
   22,513.32x = 31,064.58 × 13,558.68
4. Step 4: Simplify right side
   22,513.32x = 421,194,699.55
5. Step 5: Solve for x
   x = 421,194,699.55/22,513.32
6. Step 6: Final answer
   x = 18,708.69