Finding the Fourth Proportional to 31,300.47, 43,194.60 and 17,153.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.47 : 43,194.60 = 17,153.28 : x
2. Step 2: Convert to fraction form
   31,300.47/43,194.60 = 17,153.28/x
3. Step 3: Cross multiply
   31,300.47x = 43,194.60 × 17,153.28
4. Step 4: Simplify right side
   31,300.47x = 740,929,068.29
5. Step 5: Solve for x
   x = 740,929,068.29/31,300.47
6. Step 6: Final answer
   x = 23,671.50