Finding the Fourth Proportional to 52,266.56, 72,129.36 and 28,394.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,266.56 : 72,129.36 = 28,394.72 : x
2. Step 2: Convert to fraction form
   52,266.56/72,129.36 = 28,394.72/x
3. Step 3: Cross multiply
   52,266.56x = 72,129.36 × 28,394.72
4. Step 4: Simplify right side
   52,266.56x = 2,048,092,980.98
5. Step 5: Solve for x
   x = 2,048,092,980.98/52,266.56
6. Step 6: Final answer
   x = 39,185.53