Finding the Fourth Proportional to 10,116.52, 13,971.69 and 7,700.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116.52 : 13,971.69 = 7,700.72 : x
2. Step 2: Convert to fraction form
   10,116.52/13,971.69 = 7,700.72/x
3. Step 3: Cross multiply
   10,116.52x = 13,971.69 × 7,700.72
4. Step 4: Simplify right side
   10,116.52x = 107,591,999.18
5. Step 5: Solve for x
   x = 107,591,999.18/10,116.52
6. Step 6: Final answer
   x = 10,635.28