Finding the Fourth Proportional to 22,758.45, 31,392 and 15,101.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,758.45 : 31,392 = 15,101.56 : x
2. Step 2: Convert to fraction form
   22,758.45/31,392 = 15,101.56/x
3. Step 3: Cross multiply
   22,758.45x = 31,392 × 15,101.56
4. Step 4: Simplify right side
   22,758.45x = 474,068,171.52
5. Step 5: Solve for x
   x = 474,068,171.52/22,758.45
6. Step 6: Final answer
   x = 20,830.42