Finding the Fourth Proportional to 31,084.79, 42,897.02 and 16,937.64

Step by Step Solution

1. Step 1: Write the proportion equation
   31,084.79 : 42,897.02 = 16,937.64 : x
2. Step 2: Convert to fraction form
   31,084.79/42,897.02 = 16,937.64/x
3. Step 3: Cross multiply
   31,084.79x = 42,897.02 × 16,937.64
4. Step 4: Simplify right side
   31,084.79x = 726,574,281.83
5. Step 5: Solve for x
   x = 726,574,281.83/31,084.79
6. Step 6: Final answer
   x = 23,373.95