Finding the Fourth Proportional to 31,606.56, 43,621.24 and 30,568.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,606.56 : 43,621.24 = 30,568.08 : x
2. Step 2: Convert to fraction form
   31,606.56/43,621.24 = 30,568.08/x
3. Step 3: Cross multiply
   31,606.56x = 43,621.24 × 30,568.08
4. Step 4: Simplify right side
   31,606.56x = 1,333,417,554.02
5. Step 5: Solve for x
   x = 1,333,417,554.02/31,606.56
6. Step 6: Final answer
   x = 42,188.00