Finding the Fourth Proportional to 11,663.83, 17,485.23 and 4,263.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,663.83 : 17,485.23 = 4,263.10 : x
2. Step 2: Convert to fraction form
   11,663.83/17,485.23 = 4,263.10/x
3. Step 3: Cross multiply
   11,663.83x = 17,485.23 × 4,263.10
4. Step 4: Simplify right side
   11,663.83x = 74,541,256.29
5. Step 5: Solve for x
   x = 74,541,256.29/11,663.83
6. Step 6: Final answer
   x = 6,390.80