Finding the Fourth Proportional to 10,039.55, 15,068.50 and 5,112.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,039.55 : 15,068.50 = 5,112.59 : x
2. Step 2: Convert to fraction form
   10,039.55/15,068.50 = 5,112.59/x
3. Step 3: Cross multiply
   10,039.55x = 15,068.50 × 5,112.59
4. Step 4: Simplify right side
   10,039.55x = 77,038,974.29
5. Step 5: Solve for x
   x = 77,038,974.29/10,039.55
6. Step 6: Final answer
   x = 7,673.55