Finding the Fourth Proportional to 32,936.42, 45,421.56 and 30,490.02

Step by Step Solution

1. Step 1: Write the proportion equation
   32,936.42 : 45,421.56 = 30,490.02 : x
2. Step 2: Convert to fraction form
   32,936.42/45,421.56 = 30,490.02/x
3. Step 3: Cross multiply
   32,936.42x = 45,421.56 × 30,490.02
4. Step 4: Simplify right side
   32,936.42x = 1,384,904,272.83
5. Step 5: Solve for x
   x = 1,384,904,272.83/32,936.42
6. Step 6: Final answer
   x = 42,047.81