Finding the Fourth Proportional to 31,113, 42,934.74 and 16,965.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,113 : 42,934.74 = 16,965.54 : x
2. Step 2: Convert to fraction form
   31,113/42,934.74 = 16,965.54/x
3. Step 3: Cross multiply
   31,113x = 42,934.74 × 16,965.54
4. Step 4: Simplify right side
   31,113x = 728,411,048.86
5. Step 5: Solve for x
   x = 728,411,048.86/31,113
6. Step 6: Final answer
   x = 23,411.79