Finding the Fourth Proportional to 52,219.39, 72,062.81 and 28,346.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,219.39 : 72,062.81 = 28,346.05 : x
2. Step 2: Convert to fraction form
   52,219.39/72,062.81 = 28,346.05/x
3. Step 3: Cross multiply
   52,219.39x = 72,062.81 × 28,346.05
4. Step 4: Simplify right side
   52,219.39x = 2,042,696,015.40
5. Step 5: Solve for x
   x = 2,042,696,015.40/52,219.39
6. Step 6: Final answer
   x = 39,117.58