Finding the Fourth Proportional to 52,833.93, 72,912.61 and 28,960.60

Step by Step Solution

1. Step 1: Write the proportion equation
   52,833.93 : 72,912.61 = 28,960.60 : x
2. Step 2: Convert to fraction form
   52,833.93/72,912.61 = 28,960.60/x
3. Step 3: Cross multiply
   52,833.93x = 72,912.61 × 28,960.60
4. Step 4: Simplify right side
   52,833.93x = 2,111,592,933.17
5. Step 5: Solve for x
   x = 2,111,592,933.17/52,833.93
6. Step 6: Final answer
   x = 39,966.61