Finding the Fourth Proportional to 57,010.13, 78,667.16 and 31,513.05

Step by Step Solution

1. Step 1: Write the proportion equation
   57,010.13 : 78,667.16 = 31,513.05 : x
2. Step 2: Convert to fraction form
   57,010.13/78,667.16 = 31,513.05/x
3. Step 3: Cross multiply
   57,010.13x = 78,667.16 × 31,513.05
4. Step 4: Simplify right side
   57,010.13x = 2,479,042,146.44
5. Step 5: Solve for x
   x = 2,479,042,146.44/57,010.13
6. Step 6: Final answer
   x = 43,484.24