Finding the Fourth Proportional to 52,810.35, 72,877.86 and 28,936.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,810.35 : 72,877.86 = 28,936.96 : x
2. Step 2: Convert to fraction form
   52,810.35/72,877.86 = 28,936.96/x
3. Step 3: Cross multiply
   52,810.35x = 72,877.86 × 28,936.96
4. Step 4: Simplify right side
   52,810.35x = 2,108,863,537.51
5. Step 5: Solve for x
   x = 2,108,863,537.51/52,810.35
6. Step 6: Final answer
   x = 39,932.77