Finding the Fourth Proportional to 8,848.40, 12,209.82 and 5,072.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,848.40 : 12,209.82 = 5,072.59 : x
2. Step 2: Convert to fraction form
   8,848.40/12,209.82 = 5,072.59/x
3. Step 3: Cross multiply
   8,848.40x = 12,209.82 × 5,072.59
4. Step 4: Simplify right side
   8,848.40x = 61,935,349.78
5. Step 5: Solve for x
   x = 61,935,349.78/8,848.40
6. Step 6: Final answer
   x = 6,999.61