Finding the Fourth Proportional to 64,383.12, 96,602.42 and 31,128.23

Step by Step Solution

1. Step 1: Write the proportion equation
   64,383.12 : 96,602.42 = 31,128.23 : x
2. Step 2: Convert to fraction form
   64,383.12/96,602.42 = 31,128.23/x
3. Step 3: Cross multiply
   64,383.12x = 96,602.42 × 31,128.23
4. Step 4: Simplify right side
   64,383.12x = 3,007,062,667.64
5. Step 5: Solve for x
   x = 3,007,062,667.64/64,383.12
6. Step 6: Final answer
   x = 46,705.76