Finding the Fourth Proportional to 85,413, 117,870.48 and 47,687.52

Step by Step Solution

1. Step 1: Write the proportion equation
   85,413 : 117,870.48 = 47,687.52 : x
2. Step 2: Convert to fraction form
   85,413/117,870.48 = 47,687.52/x
3. Step 3: Cross multiply
   85,413x = 117,870.48 × 47,687.52
4. Step 4: Simplify right side
   85,413x = 5,620,950,872.41
5. Step 5: Solve for x
   x = 5,620,950,872.41/85,413
6. Step 6: Final answer
   x = 65,809.08