Finding the Fourth Proportional to 10,005.31, 13,807.33 and 5,529.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.31 : 13,807.33 = 5,529.06 : x
2. Step 2: Convert to fraction form
   10,005.31/13,807.33 = 5,529.06/x
3. Step 3: Cross multiply
   10,005.31x = 13,807.33 × 5,529.06
4. Step 4: Simplify right side
   10,005.31x = 76,341,521.49
5. Step 5: Solve for x
   x = 76,341,521.49/10,005.31
6. Step 6: Final answer
   x = 7,630.10