Finding the Fourth Proportional to 64,019.60, 88,338.22 and 35,719.80

Step by Step Solution

1. Step 1: Write the proportion equation
   64,019.60 : 88,338.22 = 35,719.80 : x
2. Step 2: Convert to fraction form
   64,019.60/88,338.22 = 35,719.80/x
3. Step 3: Cross multiply
   64,019.60x = 88,338.22 × 35,719.80
4. Step 4: Simplify right side
   64,019.60x = 3,155,423,550.76
5. Step 5: Solve for x
   x = 3,155,423,550.76/64,019.60
6. Step 6: Final answer
   x = 49,288.40