Finding the Fourth Proportional to 31,061.94, 42,865.64 and 16,914.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.94 : 42,865.64 = 16,914.79 : x
2. Step 2: Convert to fraction form
   31,061.94/42,865.64 = 16,914.79/x
3. Step 3: Cross multiply
   31,061.94x = 42,865.64 × 16,914.79
4. Step 4: Simplify right side
   31,061.94x = 725,063,298.82
5. Step 5: Solve for x
   x = 725,063,298.82/31,061.94
6. Step 6: Final answer
   x = 23,342.50