Finding the Fourth Proportional to 10,970.51, 16,455.96 and 3,955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,970.51 : 16,455.96 = 3,955.50 : x
2. Step 2: Convert to fraction form
   10,970.51/16,455.96 = 3,955.50/x
3. Step 3: Cross multiply
   10,970.51x = 16,455.96 × 3,955.50
4. Step 4: Simplify right side
   10,970.51x = 65,091,549.78
5. Step 5: Solve for x
   x = 65,091,549.78/10,970.51
6. Step 6: Final answer
   x = 5,933.32