Finding the Fourth Proportional to 8,848.71, 12,211.72 and 5,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,848.71 : 12,211.72 = 5,072.50 : x
2. Step 2: Convert to fraction form
   8,848.71/12,211.72 = 5,072.50/x
3. Step 3: Cross multiply
   8,848.71x = 12,211.72 × 5,072.50
4. Step 4: Simplify right side
   8,848.71x = 61,943,971.31
5. Step 5: Solve for x
   x = 61,943,971.31/8,848.71
6. Step 6: Final answer
   x = 7,000.34