Finding the Fourth Proportional to 52,619.25, 72,619.56 and 28,749.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,619.25 : 72,619.56 = 28,749.52 : x
2. Step 2: Convert to fraction form
   52,619.25/72,619.56 = 28,749.52/x
3. Step 3: Cross multiply
   52,619.25x = 72,619.56 × 28,749.52
4. Step 4: Simplify right side
   52,619.25x = 2,087,777,311.06
5. Step 5: Solve for x
   x = 2,087,777,311.06/52,619.25
6. Step 6: Final answer
   x = 39,677.06