Finding the Fourth Proportional to 122,945.10, 184,374.45 and 56,417.10

Step by Step Solution

1. Step 1: Write the proportion equation
   122,945.10 : 184,374.45 = 56,417.10 : x
2. Step 2: Convert to fraction form
   122,945.10/184,374.45 = 56,417.10/x
3. Step 3: Cross multiply
   122,945.10x = 184,374.45 × 56,417.10
4. Step 4: Simplify right side
   122,945.10x = 10,401,871,783.10
5. Step 5: Solve for x
   x = 10,401,871,783.10/122,945.10
6. Step 6: Final answer
   x = 84,605.83