Finding the Fourth Proportional to 8,051.71, 11,111.37 and 4,907.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,051.71 : 11,111.37 = 4,907.89 : x
2. Step 2: Convert to fraction form
   8,051.71/11,111.37 = 4,907.89/x
3. Step 3: Cross multiply
   8,051.71x = 11,111.37 × 4,907.89
4. Step 4: Simplify right side
   8,051.71x = 54,533,381.71
5. Step 5: Solve for x
   x = 54,533,381.71/8,051.71
6. Step 6: Final answer
   x = 6,772.89