Finding the Fourth Proportional to 31,867.47, 43,978.18 and 17,527.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,867.47 : 43,978.18 = 17,527.90 : x
2. Step 2: Convert to fraction form
   31,867.47/43,978.18 = 17,527.90/x
3. Step 3: Cross multiply
   31,867.47x = 43,978.18 × 17,527.90
4. Step 4: Simplify right side
   31,867.47x = 770,845,141.22
5. Step 5: Solve for x
   x = 770,845,141.22/31,867.47
6. Step 6: Final answer
   x = 24,189.09