Finding the Fourth Proportional to 7,470.59, 10,309.72 and 4,113.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,470.59 : 10,309.72 = 4,113.72 : x
2. Step 2: Convert to fraction form
   7,470.59/10,309.72 = 4,113.72/x
3. Step 3: Cross multiply
   7,470.59x = 10,309.72 × 4,113.72
4. Step 4: Simplify right side
   7,470.59x = 42,411,301.36
5. Step 5: Solve for x
   x = 42,411,301.36/7,470.59
6. Step 6: Final answer
   x = 5,677.10