Finding the Fourth Proportional to 9,783.59, 14,681.55 and 5,112.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,783.59 : 14,681.55 = 5,112.01 : x
2. Step 2: Convert to fraction form
   9,783.59/14,681.55 = 5,112.01/x
3. Step 3: Cross multiply
   9,783.59x = 14,681.55 × 5,112.01
4. Step 4: Simplify right side
   9,783.59x = 75,052,267.94
5. Step 5: Solve for x
   x = 75,052,267.94/9,783.59
6. Step 6: Final answer
   x = 7,671.24