Finding the Fourth Proportional to 57,328.42, 86,002.74 and 17,875.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,328.42 : 86,002.74 = 17,875.72 : x
2. Step 2: Convert to fraction form
   57,328.42/86,002.74 = 17,875.72/x
3. Step 3: Cross multiply
   57,328.42x = 86,002.74 × 17,875.72
4. Step 4: Simplify right side
   57,328.42x = 1,537,360,899.47
5. Step 5: Solve for x
   x = 1,537,360,899.47/57,328.42
6. Step 6: Final answer
   x = 26,816.73