Finding the Fourth Proportional to 122,896.69, 184,300.39 and 42,912.19

Step by Step Solution

1. Step 1: Write the proportion equation
   122,896.69 : 184,300.39 = 42,912.19 : x
2. Step 2: Convert to fraction form
   122,896.69/184,300.39 = 42,912.19/x
3. Step 3: Cross multiply
   122,896.69x = 184,300.39 × 42,912.19
4. Step 4: Simplify right side
   122,896.69x = 7,908,732,784.72
5. Step 5: Solve for x
   x = 7,908,732,784.72/122,896.69
6. Step 6: Final answer
   x = 64,352.69