Finding the Fourth Proportional to 30,434.02, 42,025.88 and 18,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,434.02 : 42,025.88 = 18,968.50 : x
2. Step 2: Convert to fraction form
   30,434.02/42,025.88 = 18,968.50/x
3. Step 3: Cross multiply
   30,434.02x = 42,025.88 × 18,968.50
4. Step 4: Simplify right side
   30,434.02x = 797,167,806.51
5. Step 5: Solve for x
   x = 797,167,806.51/30,434.02
6. Step 6: Final answer
   x = 26,193.31