Finding the Fourth Proportional to 31,310.79, 43,211.88 and 17,884.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,310.79 : 43,211.88 = 17,884.05 : x
2. Step 2: Convert to fraction form
   31,310.79/43,211.88 = 17,884.05/x
3. Step 3: Cross multiply
   31,310.79x = 43,211.88 × 17,884.05
4. Step 4: Simplify right side
   31,310.79x = 772,803,422.51
5. Step 5: Solve for x
   x = 772,803,422.51/31,310.79
6. Step 6: Final answer
   x = 24,681.70