Finding the Fourth Proportional to 57,181.91, 78,916.54 and 31,693.80

Step by Step Solution

1. Step 1: Write the proportion equation
   57,181.91 : 78,916.54 = 31,693.80 : x
2. Step 2: Convert to fraction form
   57,181.91/78,916.54 = 31,693.80/x
3. Step 3: Cross multiply
   57,181.91x = 78,916.54 × 31,693.80
4. Step 4: Simplify right side
   57,181.91x = 2,501,164,956.22
5. Step 5: Solve for x
   x = 2,501,164,956.22/57,181.91
6. Step 6: Final answer
   x = 43,740.49