Finding the Fourth Proportional to 10,071.54, 15,085.23 and 7,140.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,071.54 : 15,085.23 = 7,140.96 : x
2. Step 2: Convert to fraction form
   10,071.54/15,085.23 = 7,140.96/x
3. Step 3: Cross multiply
   10,071.54x = 15,085.23 × 7,140.96
4. Step 4: Simplify right side
   10,071.54x = 107,723,024.02
5. Step 5: Solve for x
   x = 107,723,024.02/10,071.54
6. Step 6: Final answer
   x = 10,695.78