Finding the Fourth Proportional to 32,978.12, 45,498.24 and 18,636.08

Step by Step Solution

1. Step 1: Write the proportion equation
   32,978.12 : 45,498.24 = 18,636.08 : x
2. Step 2: Convert to fraction form
   32,978.12/45,498.24 = 18,636.08/x
3. Step 3: Cross multiply
   32,978.12x = 45,498.24 × 18,636.08
4. Step 4: Simplify right side
   32,978.12x = 847,908,840.50
5. Step 5: Solve for x
   x = 847,908,840.50/32,978.12
6. Step 6: Final answer
   x = 25,711.25