Finding the Fourth Proportional to 71,636.29, 98,832.82 and 40,987

Step by Step Solution

1. Step 1: Write the proportion equation
   71,636.29 : 98,832.82 = 40,987 : x
2. Step 2: Convert to fraction form
   71,636.29/98,832.82 = 40,987/x
3. Step 3: Cross multiply
   71,636.29x = 98,832.82 × 40,987
4. Step 4: Simplify right side
   71,636.29x = 4,050,860,793.34
5. Step 5: Solve for x
   x = 4,050,860,793.34/71,636.29
6. Step 6: Final answer
   x = 56,547.61