Finding the Fourth Proportional to 31,061.84, 42,865.88 and 16,914.64

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.84 : 42,865.88 = 16,914.64 : x
2. Step 2: Convert to fraction form
   31,061.84/42,865.88 = 16,914.64/x
3. Step 3: Cross multiply
   31,061.84x = 42,865.88 × 16,914.64
4. Step 4: Simplify right side
   31,061.84x = 725,060,928.48
5. Step 5: Solve for x
   x = 725,060,928.48/31,061.84
6. Step 6: Final answer
   x = 23,342.50