Finding the Fourth Proportional to 52,242.72, 72,095.31 and 30,745.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,242.72 : 72,095.31 = 30,745.32 : x
2. Step 2: Convert to fraction form
   52,242.72/72,095.31 = 30,745.32/x
3. Step 3: Cross multiply
   52,242.72x = 72,095.31 × 30,745.32
4. Step 4: Simplify right side
   52,242.72x = 2,216,593,376.45
5. Step 5: Solve for x
   x = 2,216,593,376.45/52,242.72
6. Step 6: Final answer
   x = 42,428.75