Finding the Fourth Proportional to 31,085.13, 42,896.88 and 16,937.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,085.13 : 42,896.88 = 16,937.67 : x
2. Step 2: Convert to fraction form
   31,085.13/42,896.88 = 16,937.67/x
3. Step 3: Cross multiply
   31,085.13x = 42,896.88 × 16,937.67
4. Step 4: Simplify right side
   31,085.13x = 726,573,197.47
5. Step 5: Solve for x
   x = 726,573,197.47/31,085.13
6. Step 6: Final answer
   x = 23,373.66