Finding the Fourth Proportional to 52,655.37, 72,661.88 and 28,782.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,655.37 : 72,661.88 = 28,782.05 : x
2. Step 2: Convert to fraction form
   52,655.37/72,661.88 = 28,782.05/x
3. Step 3: Cross multiply
   52,655.37x = 72,661.88 × 28,782.05
4. Step 4: Simplify right side
   52,655.37x = 2,091,357,863.25
5. Step 5: Solve for x
   x = 2,091,357,863.25/52,655.37
6. Step 6: Final answer
   x = 39,717.85