Finding the Fourth Proportional to 31,089.35, 46,650.53 and 13,560.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,089.35 : 46,650.53 = 13,560.55 : x
2. Step 2: Convert to fraction form
   31,089.35/46,650.53 = 13,560.55/x
3. Step 3: Cross multiply
   31,089.35x = 46,650.53 × 13,560.55
4. Step 4: Simplify right side
   31,089.35x = 632,606,761.87
5. Step 5: Solve for x
   x = 632,606,761.87/31,089.35
6. Step 6: Final answer
   x = 20,348.02