Finding the Fourth Proportional to 64,100.67, 88,449.57 and 40,235.03

Step by Step Solution

1. Step 1: Write the proportion equation
   64,100.67 : 88,449.57 = 40,235.03 : x
2. Step 2: Convert to fraction form
   64,100.67/88,449.57 = 40,235.03/x
3. Step 3: Cross multiply
   64,100.67x = 88,449.57 × 40,235.03
4. Step 4: Simplify right side
   64,100.67x = 3,558,770,991.88
5. Step 5: Solve for x
   x = 3,558,770,991.88/64,100.67
6. Step 6: Final answer
   x = 55,518.47