Finding the Fourth Proportional to 31,467.76, 43,423.86 and 17,317.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,467.76 : 43,423.86 = 17,317.88 : x
2. Step 2: Convert to fraction form
   31,467.76/43,423.86 = 17,317.88/x
3. Step 3: Cross multiply
   31,467.76x = 43,423.86 × 17,317.88
4. Step 4: Simplify right side
   31,467.76x = 752,009,196.62
5. Step 5: Solve for x
   x = 752,009,196.62/31,467.76
6. Step 6: Final answer
   x = 23,897.77