Finding the Fourth Proportional to 64,019.97, 88,319.43 and 61,055.37

Step by Step Solution

1. Step 1: Write the proportion equation
   64,019.97 : 88,319.43 = 61,055.37 : x
2. Step 2: Convert to fraction form
   64,019.97/88,319.43 = 61,055.37/x
3. Step 3: Cross multiply
   64,019.97x = 88,319.43 × 61,055.37
4. Step 4: Simplify right side
   64,019.97x = 5,392,375,476.84
5. Step 5: Solve for x
   x = 5,392,375,476.84/64,019.97
6. Step 6: Final answer
   x = 84,229.58