Finding the Fourth Proportional to 10,111.51, 13,947.57 and 7,234.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.51 : 13,947.57 = 7,234.93 : x
2. Step 2: Convert to fraction form
   10,111.51/13,947.57 = 7,234.93/x
3. Step 3: Cross multiply
   10,111.51x = 13,947.57 × 7,234.93
4. Step 4: Simplify right side
   10,111.51x = 100,909,692.62
5. Step 5: Solve for x
   x = 100,909,692.62/10,111.51
6. Step 6: Final answer
   x = 9,979.69