Finding the Fourth Proportional to 30,585.96, 42,210.72 and 17,158.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,585.96 : 42,210.72 = 17,158.32 : x
2. Step 2: Convert to fraction form
   30,585.96/42,210.72 = 17,158.32/x
3. Step 3: Cross multiply
   30,585.96x = 42,210.72 × 17,158.32
4. Step 4: Simplify right side
   30,585.96x = 724,265,041.19
5. Step 5: Solve for x
   x = 724,265,041.19/30,585.96
6. Step 6: Final answer
   x = 23,679.66