Finding the Fourth Proportional to 52,260.41, 72,118.17 and 28,386.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,260.41 : 72,118.17 = 28,386.56 : x
2. Step 2: Convert to fraction form
   52,260.41/72,118.17 = 28,386.56/x
3. Step 3: Cross multiply
   52,260.41x = 72,118.17 × 28,386.56
4. Step 4: Simplify right side
   52,260.41x = 2,047,186,759.80
5. Step 5: Solve for x
   x = 2,047,186,759.80/52,260.41
6. Step 6: Final answer
   x = 39,172.80