Finding the Fourth Proportional to 30,547.82, 42,156.50 and 17,122.07

Step by Step Solution

1. Step 1: Write the proportion equation
   30,547.82 : 42,156.50 = 17,122.07 : x
2. Step 2: Convert to fraction form
   30,547.82/42,156.50 = 17,122.07/x
3. Step 3: Cross multiply
   30,547.82x = 42,156.50 × 17,122.07
4. Step 4: Simplify right side
   30,547.82x = 721,806,247.56
5. Step 5: Solve for x
   x = 721,806,247.56/30,547.82
6. Step 6: Final answer
   x = 23,628.74