Finding the Fourth Proportional to 31,047.68, 42,844.46 and 16,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.68 : 42,844.46 = 16,900.50 : x
2. Step 2: Convert to fraction form
   31,047.68/42,844.46 = 16,900.50/x
3. Step 3: Cross multiply
   31,047.68x = 42,844.46 × 16,900.50
4. Step 4: Simplify right side
   31,047.68x = 724,092,796.23
5. Step 5: Solve for x
   x = 724,092,796.23/31,047.68
6. Step 6: Final answer
   x = 23,321.96