Finding the Fourth Proportional to 52,743.33, 72,785.79 and 28,870.02

Step by Step Solution

1. Step 1: Write the proportion equation
   52,743.33 : 72,785.79 = 28,870.02 : x
2. Step 2: Convert to fraction form
   52,743.33/72,785.79 = 28,870.02/x
3. Step 3: Cross multiply
   52,743.33x = 72,785.79 × 28,870.02
4. Step 4: Simplify right side
   52,743.33x = 2,101,327,213.02
5. Step 5: Solve for x
   x = 2,101,327,213.02/52,743.33
6. Step 6: Final answer
   x = 39,840.62