Finding the Fourth Proportional to 7,300.07, 10,931.20 and 5,317.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,300.07 : 10,931.20 = 5,317.55 : x
2. Step 2: Convert to fraction form
   7,300.07/10,931.20 = 5,317.55/x
3. Step 3: Cross multiply
   7,300.07x = 10,931.20 × 5,317.55
4. Step 4: Simplify right side
   7,300.07x = 58,127,202.56
5. Step 5: Solve for x
   x = 58,127,202.56/7,300.07
6. Step 6: Final answer
   x = 7,962.55