Finding the Fourth Proportional to 10,007.96, 13,810.78 and 5,531.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,007.96 : 13,810.78 = 5,531.61 : x
2. Step 2: Convert to fraction form
   10,007.96/13,810.78 = 5,531.61/x
3. Step 3: Cross multiply
   10,007.96x = 13,810.78 × 5,531.61
4. Step 4: Simplify right side
   10,007.96x = 76,395,848.76
5. Step 5: Solve for x
   x = 76,395,848.76/10,007.96
6. Step 6: Final answer
   x = 7,633.51