Finding the Fourth Proportional to 40,607.50, 56,053.62 and 30,565

Step by Step Solution

1. Step 1: Write the proportion equation
   40,607.50 : 56,053.62 = 30,565 : x
2. Step 2: Convert to fraction form
   40,607.50/56,053.62 = 30,565/x
3. Step 3: Cross multiply
   40,607.50x = 56,053.62 × 30,565
4. Step 4: Simplify right side
   40,607.50x = 1,713,278,895.30
5. Step 5: Solve for x
   x = 1,713,278,895.30/40,607.50
6. Step 6: Final answer
   x = 42,191.19