Finding the Fourth Proportional to 57,018.18, 78,681.91 and 31,523.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,018.18 : 78,681.91 = 31,523.06 : x
2. Step 2: Convert to fraction form
   57,018.18/78,681.91 = 31,523.06/x
3. Step 3: Cross multiply
   57,018.18x = 78,681.91 × 31,523.06
4. Step 4: Simplify right side
   57,018.18x = 2,480,294,215.60
5. Step 5: Solve for x
   x = 2,480,294,215.60/57,018.18
6. Step 6: Final answer
   x = 43,500.06