Finding the Fourth Proportional to 52,206.27, 72,011.88 and 30,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,206.27 : 72,011.88 = 30,970.50 : x
2. Step 2: Convert to fraction form
   52,206.27/72,011.88 = 30,970.50/x
3. Step 3: Cross multiply
   52,206.27x = 72,011.88 × 30,970.50
4. Step 4: Simplify right side
   52,206.27x = 2,230,243,929.54
5. Step 5: Solve for x
   x = 2,230,243,929.54/52,206.27
6. Step 6: Final answer
   x = 42,719.85