Finding the Fourth Proportional to 5,625.96, 7,761.42 and 3,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,625.96 : 7,761.42 = 3,636.72 : x
2. Step 2: Convert to fraction form
   5,625.96/7,761.42 = 3,636.72/x
3. Step 3: Cross multiply
   5,625.96x = 7,761.42 × 3,636.72
4. Step 4: Simplify right side
   5,625.96x = 28,226,111.34
5. Step 5: Solve for x
   x = 28,226,111.34/5,625.96
6. Step 6: Final answer
   x = 5,017.12