Finding the Fourth Proportional to 13,772.06, 19,005.46 and 7,804.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,772.06 : 19,005.46 = 7,804.13 : x
2. Step 2: Convert to fraction form
   13,772.06/19,005.46 = 7,804.13/x
3. Step 3: Cross multiply
   13,772.06x = 19,005.46 × 7,804.13
4. Step 4: Simplify right side
   13,772.06x = 148,321,080.55
5. Step 5: Solve for x
   x = 148,321,080.55/13,772.06
6. Step 6: Final answer
   x = 10,769.71