Finding the Fourth Proportional to 31,093.68, 42,909.28 and 16,946.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,093.68 : 42,909.28 = 16,946.52 : x
2. Step 2: Convert to fraction form
   31,093.68/42,909.28 = 16,946.52/x
3. Step 3: Cross multiply
   31,093.68x = 42,909.28 × 16,946.52
4. Step 4: Simplify right side
   31,093.68x = 727,162,971.71
5. Step 5: Solve for x
   x = 727,162,971.71/31,093.68
6. Step 6: Final answer
   x = 23,386.20