Finding the Fourth Proportional to 5,460.30, 7,661.70 and 5,460.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,460.30 : 7,661.70 = 5,460.30 : x
2. Step 2: Convert to fraction form
   5,460.30/7,661.70 = 5,460.30/x
3. Step 3: Cross multiply
   5,460.30x = 7,661.70 × 5,460.30
4. Step 4: Simplify right side
   5,460.30x = 41,835,180.51
5. Step 5: Solve for x
   x = 41,835,180.51/5,460.30
6. Step 6: Final answer
   x = 7,661.70