Finding the Fourth Proportional to 52,219.42, 72,062.89 and 28,346.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,219.42 : 72,062.89 = 28,346.09 : x
2. Step 2: Convert to fraction form
   52,219.42/72,062.89 = 28,346.09/x
3. Step 3: Cross multiply
   52,219.42x = 72,062.89 × 28,346.09
4. Step 4: Simplify right side
   52,219.42x = 2,042,700,734.42
5. Step 5: Solve for x
   x = 2,042,700,734.42/52,219.42
6. Step 6: Final answer
   x = 39,117.65