Finding the Fourth Proportional to 52,801.09, 72,856.25 and 30,129.73

Step by Step Solution

1. Step 1: Write the proportion equation
   52,801.09 : 72,856.25 = 30,129.73 : x
2. Step 2: Convert to fraction form
   52,801.09/72,856.25 = 30,129.73/x
3. Step 3: Cross multiply
   52,801.09x = 72,856.25 × 30,129.73
4. Step 4: Simplify right side
   52,801.09x = 2,195,139,141.31
5. Step 5: Solve for x
   x = 2,195,139,141.31/52,801.09
6. Step 6: Final answer
   x = 41,573.75