Finding the Fourth Proportional to 30,859.58, 42,586.24 and 17,430.86

Step by Step Solution

1. Step 1: Write the proportion equation
   30,859.58 : 42,586.24 = 17,430.86 : x
2. Step 2: Convert to fraction form
   30,859.58/42,586.24 = 17,430.86/x
3. Step 3: Cross multiply
   30,859.58x = 42,586.24 × 17,430.86
4. Step 4: Simplify right side
   30,859.58x = 742,314,530.86
5. Step 5: Solve for x
   x = 742,314,530.86/30,859.58
6. Step 6: Final answer
   x = 24,054.59