Finding the Fourth Proportional to 52,219.15, 72,061.96 and 28,345.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,219.15 : 72,061.96 = 28,345.81 : x
2. Step 2: Convert to fraction form
   52,219.15/72,061.96 = 28,345.81/x
3. Step 3: Cross multiply
   52,219.15x = 72,061.96 × 28,345.81
4. Step 4: Simplify right side
   52,219.15x = 2,042,654,626.39
5. Step 5: Solve for x
   x = 2,042,654,626.39/52,219.15
6. Step 6: Final answer
   x = 39,116.96