Finding the Fourth Proportional to 52,359.21, 78,555.29 and 17,323.47

Step by Step Solution

1. Step 1: Write the proportion equation
   52,359.21 : 78,555.29 = 17,323.47 : x
2. Step 2: Convert to fraction form
   52,359.21/78,555.29 = 17,323.47/x
3. Step 3: Cross multiply
   52,359.21x = 78,555.29 × 17,323.47
4. Step 4: Simplify right side
   52,359.21x = 1,360,850,123.04
5. Step 5: Solve for x
   x = 1,360,850,123.04/52,359.21
6. Step 6: Final answer
   x = 25,990.65