Finding the Fourth Proportional to 9,365.31, 12,924.38 and 5,116.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,365.31 : 12,924.38 = 5,116.55 : x
2. Step 2: Convert to fraction form
   9,365.31/12,924.38 = 5,116.55/x
3. Step 3: Cross multiply
   9,365.31x = 12,924.38 × 5,116.55
4. Step 4: Simplify right side
   9,365.31x = 66,128,259.04
5. Step 5: Solve for x
   x = 66,128,259.04/9,365.31
6. Step 6: Final answer
   x = 7,060.98