Finding the Fourth Proportional to 81,856.49, 122,848.37 and 37,485.75

Step by Step Solution

1. Step 1: Write the proportion equation
   81,856.49 : 122,848.37 = 37,485.75 : x
2. Step 2: Convert to fraction form
   81,856.49/122,848.37 = 37,485.75/x
3. Step 3: Cross multiply
   81,856.49x = 122,848.37 × 37,485.75
4. Step 4: Simplify right side
   81,856.49x = 4,605,063,049.50
5. Step 5: Solve for x
   x = 4,605,063,049.50/81,856.49
6. Step 6: Final answer
   x = 56,257.77