Finding the Fourth Proportional to 52,178.31, 72,005.76 and 28,304.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,178.31 : 72,005.76 = 28,304.46 : x
2. Step 2: Convert to fraction form
   52,178.31/72,005.76 = 28,304.46/x
3. Step 3: Cross multiply
   52,178.31x = 72,005.76 × 28,304.46
4. Step 4: Simplify right side
   52,178.31x = 2,038,084,153.69
5. Step 5: Solve for x
   x = 2,038,084,153.69/52,178.31
6. Step 6: Final answer
   x = 39,059.99