Finding the Fourth Proportional to 52,219.72, 72,063.24 and 28,346.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,219.72 : 72,063.24 = 28,346.36 : x
2. Step 2: Convert to fraction form
   52,219.72/72,063.24 = 28,346.36/x
3. Step 3: Cross multiply
   52,219.72x = 72,063.24 × 28,346.36
4. Step 4: Simplify right side
   52,219.72x = 2,042,730,543.81
5. Step 5: Solve for x
   x = 2,042,730,543.81/52,219.72
6. Step 6: Final answer
   x = 39,117.99