Finding the Fourth Proportional to 31,532.48, 43,199.32 and 30,350.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,532.48 : 43,199.32 = 30,350.72 : x
2. Step 2: Convert to fraction form
   31,532.48/43,199.32 = 30,350.72/x
3. Step 3: Cross multiply
   31,532.48x = 43,199.32 × 30,350.72
4. Step 4: Simplify right side
   31,532.48x = 1,311,130,465.51
5. Step 5: Solve for x
   x = 1,311,130,465.51/31,532.48
6. Step 6: Final answer
   x = 41,580.32