Finding the Fourth Proportional to 30,535.80, 42,145.02 and 19,925.34

Step by Step Solution

1. Step 1: Write the proportion equation
   30,535.80 : 42,145.02 = 19,925.34 : x
2. Step 2: Convert to fraction form
   30,535.80/42,145.02 = 19,925.34/x
3. Step 3: Cross multiply
   30,535.80x = 42,145.02 × 19,925.34
4. Step 4: Simplify right side
   30,535.80x = 839,753,852.81
5. Step 5: Solve for x
   x = 839,753,852.81/30,535.80
6. Step 6: Final answer
   x = 27,500.63