Finding the Fourth Proportional to 52,853, 72,930.46 and 28,973.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,853 : 72,930.46 = 28,973.39 : x
2. Step 2: Convert to fraction form
   52,853/72,930.46 = 28,973.39/x
3. Step 3: Cross multiply
   52,853x = 72,930.46 × 28,973.39
4. Step 4: Simplify right side
   52,853x = 2,113,042,515.59
5. Step 5: Solve for x
   x = 2,113,042,515.59/52,853
6. Step 6: Final answer
   x = 39,979.61