Finding the Fourth Proportional to 52,781.96, 72,836.37 and 28,904.03

Step by Step Solution

1. Step 1: Write the proportion equation
   52,781.96 : 72,836.37 = 28,904.03 : x
2. Step 2: Convert to fraction form
   52,781.96/72,836.37 = 28,904.03/x
3. Step 3: Cross multiply
   52,781.96x = 72,836.37 × 28,904.03
4. Step 4: Simplify right side
   52,781.96x = 2,105,264,259.39
5. Step 5: Solve for x
   x = 2,105,264,259.39/52,781.96
6. Step 6: Final answer
   x = 39,886.06