Finding the Fourth Proportional to 57,129.30, 78,863.89 and 37,759.88

Step by Step Solution

1. Step 1: Write the proportion equation
   57,129.30 : 78,863.89 = 37,759.88 : x
2. Step 2: Convert to fraction form
   57,129.30/78,863.89 = 37,759.88/x
3. Step 3: Cross multiply
   57,129.30x = 78,863.89 × 37,759.88
4. Step 4: Simplify right side
   57,129.30x = 2,977,890,628.41
5. Step 5: Solve for x
   x = 2,977,890,628.41/57,129.30
6. Step 6: Final answer
   x = 52,125.46