Finding the Fourth Proportional to 52,239.02, 72,091.33 and 30,730.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,239.02 : 72,091.33 = 30,730.34 : x
2. Step 2: Convert to fraction form
   52,239.02/72,091.33 = 30,730.34/x
3. Step 3: Cross multiply
   52,239.02x = 72,091.33 × 30,730.34
4. Step 4: Simplify right side
   52,239.02x = 2,215,391,185.35
5. Step 5: Solve for x
   x = 2,215,391,185.35/52,239.02
6. Step 6: Final answer
   x = 42,408.75