Finding the Fourth Proportional to 7,620.76, 10,510.72 and 5,102.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,620.76 : 10,510.72 = 5,102.07 : x
2. Step 2: Convert to fraction form
   7,620.76/10,510.72 = 5,102.07/x
3. Step 3: Cross multiply
   7,620.76x = 10,510.72 × 5,102.07
4. Step 4: Simplify right side
   7,620.76x = 53,626,429.19
5. Step 5: Solve for x
   x = 53,626,429.19/7,620.76
6. Step 6: Final answer
   x = 7,036.89