Finding the Fourth Proportional to 31,051.24, 42,849.47 and 16,904.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,051.24 : 42,849.47 = 16,904.09 : x
2. Step 2: Convert to fraction form
   31,051.24/42,849.47 = 16,904.09/x
3. Step 3: Cross multiply
   31,051.24x = 42,849.47 × 16,904.09
4. Step 4: Simplify right side
   31,051.24x = 724,331,446.72
5. Step 5: Solve for x
   x = 724,331,446.72/31,051.24
6. Step 6: Final answer
   x = 23,326.98