Finding the Fourth Proportional to 63,870.42, 88,139.97 and 40,010.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,870.42 : 88,139.97 = 40,010.25 : x
2. Step 2: Convert to fraction form
   63,870.42/88,139.97 = 40,010.25/x
3. Step 3: Cross multiply
   63,870.42x = 88,139.97 × 40,010.25
4. Step 4: Simplify right side
   63,870.42x = 3,526,502,234.69
5. Step 5: Solve for x
   x = 3,526,502,234.69/63,870.42
6. Step 6: Final answer
   x = 55,213.39