Finding the Fourth Proportional to 7,830.07, 10,804.18 and 5,176.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,830.07 : 10,804.18 = 5,176.51 : x
2. Step 2: Convert to fraction form
   7,830.07/10,804.18 = 5,176.51/x
3. Step 3: Cross multiply
   7,830.07x = 10,804.18 × 5,176.51
4. Step 4: Simplify right side
   7,830.07x = 55,927,945.81
5. Step 5: Solve for x
   x = 55,927,945.81/7,830.07
6. Step 6: Final answer
   x = 7,142.71