Finding the Fourth Proportional to 31,053.50, 42,864.63 and 18,477.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,053.50 : 42,864.63 = 18,477.98 : x
2. Step 2: Convert to fraction form
   31,053.50/42,864.63 = 18,477.98/x
3. Step 3: Cross multiply
   31,053.50x = 42,864.63 × 18,477.98
4. Step 4: Simplify right side
   31,053.50x = 792,051,775.85
5. Step 5: Solve for x
   x = 792,051,775.85/31,053.50
6. Step 6: Final answer
   x = 25,506.04