Finding the Fourth Proportional to 52,015.47, 71,780.82 and 28,141.63

Step by Step Solution

1. Step 1: Write the proportion equation
   52,015.47 : 71,780.82 = 28,141.63 : x
2. Step 2: Convert to fraction form
   52,015.47/71,780.82 = 28,141.63/x
3. Step 3: Cross multiply
   52,015.47x = 71,780.82 × 28,141.63
4. Step 4: Simplify right side
   52,015.47x = 2,020,028,992.55
5. Step 5: Solve for x
   x = 2,020,028,992.55/52,015.47
6. Step 6: Final answer
   x = 38,835.16