Finding the Fourth Proportional to 10,091.83, 15,073.15 and 9,140.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,091.83 : 15,073.15 = 9,140.56 : x
2. Step 2: Convert to fraction form
   10,091.83/15,073.15 = 9,140.56/x
3. Step 3: Cross multiply
   10,091.83x = 15,073.15 × 9,140.56
4. Step 4: Simplify right side
   10,091.83x = 137,777,092.50
5. Step 5: Solve for x
   x = 137,777,092.50/10,091.83
6. Step 6: Final answer
   x = 13,652.34