Finding the Fourth Proportional to 31,096.98, 42,953.49 and 21,707.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,096.98 : 42,953.49 = 21,707.46 : x
2. Step 2: Convert to fraction form
   31,096.98/42,953.49 = 21,707.46/x
3. Step 3: Cross multiply
   31,096.98x = 42,953.49 × 21,707.46
4. Step 4: Simplify right side
   31,096.98x = 932,411,166.04
5. Step 5: Solve for x
   x = 932,411,166.04/31,096.98
6. Step 6: Final answer
   x = 29,983.98