Finding the Fourth Proportional to 10,615.83, 14,653.82 and 7,970.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,615.83 : 14,653.82 = 7,970.87 : x
2. Step 2: Convert to fraction form
   10,615.83/14,653.82 = 7,970.87/x
3. Step 3: Cross multiply
   10,615.83x = 14,653.82 × 7,970.87
4. Step 4: Simplify right side
   10,615.83x = 116,803,694.22
5. Step 5: Solve for x
   x = 116,803,694.22/10,615.83
6. Step 6: Final answer
   x = 11,002.78