Finding the Fourth Proportional to 9,983.36, 14,977.12 and 3,742.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,983.36 : 14,977.12 = 3,742.40 : x
2. Step 2: Convert to fraction form
   9,983.36/14,977.12 = 3,742.40/x
3. Step 3: Cross multiply
   9,983.36x = 14,977.12 × 3,742.40
4. Step 4: Simplify right side
   9,983.36x = 56,050,373.89
5. Step 5: Solve for x
   x = 56,050,373.89/9,983.36
6. Step 6: Final answer
   x = 5,614.38