Finding the Fourth Proportional to 31,131.48, 42,959.68 and 17,700.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,131.48 : 42,959.68 = 17,700.84 : x
2. Step 2: Convert to fraction form
   31,131.48/42,959.68 = 17,700.84/x
3. Step 3: Cross multiply
   31,131.48x = 42,959.68 × 17,700.84
4. Step 4: Simplify right side
   31,131.48x = 760,422,422.13
5. Step 5: Solve for x
   x = 760,422,422.13/31,131.48
6. Step 6: Final answer
   x = 24,426.16