Finding the Fourth Proportional to 66,524.34, 91,801.30 and 39,653

Step by Step Solution

1. Step 1: Write the proportion equation
   66,524.34 : 91,801.30 = 39,653 : x
2. Step 2: Convert to fraction form
   66,524.34/91,801.30 = 39,653/x
3. Step 3: Cross multiply
   66,524.34x = 91,801.30 × 39,653
4. Step 4: Simplify right side
   66,524.34x = 3,640,196,948.90
5. Step 5: Solve for x
   x = 3,640,196,948.90/66,524.34
6. Step 6: Final answer
   x = 54,719.78