Finding the Fourth Proportional to 30,686.61, 42,164.00 and 24,388.05

Step by Step Solution

1. Step 1: Write the proportion equation
   30,686.61 : 42,164.00 = 24,388.05 : x
2. Step 2: Convert to fraction form
   30,686.61/42,164.00 = 24,388.05/x
3. Step 3: Cross multiply
   30,686.61x = 42,164.00 × 24,388.05
4. Step 4: Simplify right side
   30,686.61x = 1,028,297,801.17
5. Step 5: Solve for x
   x = 1,028,297,801.17/30,686.61
6. Step 6: Final answer
   x = 33,509.66