Finding the Fourth Proportional to 30,648.42, 42,295.23 and 18,547.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,648.42 : 42,295.23 = 18,547.02 : x
2. Step 2: Convert to fraction form
   30,648.42/42,295.23 = 18,547.02/x
3. Step 3: Cross multiply
   30,648.42x = 42,295.23 × 18,547.02
4. Step 4: Simplify right side
   30,648.42x = 784,450,476.71
5. Step 5: Solve for x
   x = 784,450,476.71/30,648.42
6. Step 6: Final answer
   x = 25,595.14