Finding the Fourth Proportional to 31,090.47, 42,903.59 and 16,943.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,090.47 : 42,903.59 = 16,943.01 : x
2. Step 2: Convert to fraction form
   31,090.47/42,903.59 = 16,943.01/x
3. Step 3: Cross multiply
   31,090.47x = 42,903.59 × 16,943.01
4. Step 4: Simplify right side
   31,090.47x = 726,915,739.89
5. Step 5: Solve for x
   x = 726,915,739.89/31,090.47
6. Step 6: Final answer
   x = 23,380.66