Finding the Fourth Proportional to 31,551.04, 43,451.84 and 30,862.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,551.04 : 43,451.84 = 30,862.12 : x
2. Step 2: Convert to fraction form
   31,551.04/43,451.84 = 30,862.12/x
3. Step 3: Cross multiply
   31,551.04x = 43,451.84 × 30,862.12
4. Step 4: Simplify right side
   31,551.04x = 1,341,015,900.30
5. Step 5: Solve for x
   x = 1,341,015,900.30/31,551.04
6. Step 6: Final answer
   x = 42,503.06