Finding the Fourth Proportional to 52,276.42, 72,141.72 and 28,403.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,276.42 : 72,141.72 = 28,403.15 : x
2. Step 2: Convert to fraction form
   52,276.42/72,141.72 = 28,403.15/x
3. Step 3: Cross multiply
   52,276.42x = 72,141.72 × 28,403.15
4. Step 4: Simplify right side
   52,276.42x = 2,049,052,094.42
5. Step 5: Solve for x
   x = 2,049,052,094.42/52,276.42
6. Step 6: Final answer
   x = 39,196.49