Finding the Fourth Proportional to 52,386.72, 72,287.82 and 30,875.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,386.72 : 72,287.82 = 30,875.12 : x
2. Step 2: Convert to fraction form
   52,386.72/72,287.82 = 30,875.12/x
3. Step 3: Cross multiply
   52,386.72x = 72,287.82 × 30,875.12
4. Step 4: Simplify right side
   52,386.72x = 2,231,895,117.04
5. Step 5: Solve for x
   x = 2,231,895,117.04/52,386.72
6. Step 6: Final answer
   x = 42,604.22