Finding the Fourth Proportional to 52,875.28, 72,967.72 and 30,221.30

Step by Step Solution

1. Step 1: Write the proportion equation
   52,875.28 : 72,967.72 = 30,221.30 : x
2. Step 2: Convert to fraction form
   52,875.28/72,967.72 = 30,221.30/x
3. Step 3: Cross multiply
   52,875.28x = 72,967.72 × 30,221.30
4. Step 4: Simplify right side
   52,875.28x = 2,205,179,356.44
5. Step 5: Solve for x
   x = 2,205,179,356.44/52,875.28
6. Step 6: Final answer
   x = 41,705.30