Finding the Fourth Proportional to 31,106.63, 42,927.17 and 16,959.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,106.63 : 42,927.17 = 16,959.53 : x
2. Step 2: Convert to fraction form
   31,106.63/42,927.17 = 16,959.53/x
3. Step 3: Cross multiply
   31,106.63x = 42,927.17 × 16,959.53
4. Step 4: Simplify right side
   31,106.63x = 728,024,328.00
5. Step 5: Solve for x
   x = 728,024,328.00/31,106.63
6. Step 6: Final answer
   x = 23,404.16