Finding the Fourth Proportional to 7,800.60, 10,742.94 and 7,300.29

Step by Step Solution

1. Step 1: Write the proportion equation
   7,800.60 : 10,742.94 = 7,300.29 : x
2. Step 2: Convert to fraction form
   7,800.60/10,742.94 = 7,300.29/x
3. Step 3: Cross multiply
   7,800.60x = 10,742.94 × 7,300.29
4. Step 4: Simplify right side
   7,800.60x = 78,426,577.45
5. Step 5: Solve for x
   x = 78,426,577.45/7,800.60
6. Step 6: Final answer
   x = 10,053.92