Finding the Fourth Proportional to 57,008.50, 78,671.73 and 31,858

Step by Step Solution

1. Step 1: Write the proportion equation
   57,008.50 : 78,671.73 = 31,858 : x
2. Step 2: Convert to fraction form
   57,008.50/78,671.73 = 31,858/x
3. Step 3: Cross multiply
   57,008.50x = 78,671.73 × 31,858
4. Step 4: Simplify right side
   57,008.50x = 2,506,323,974.34
5. Step 5: Solve for x
   x = 2,506,323,974.34/57,008.50
6. Step 6: Final answer
   x = 43,964.04