Finding the Fourth Proportional to 64,581.60, 89,118 and 35,898.96

Step by Step Solution

1. Step 1: Write the proportion equation
   64,581.60 : 89,118 = 35,898.96 : x
2. Step 2: Convert to fraction form
   64,581.60/89,118 = 35,898.96/x
3. Step 3: Cross multiply
   64,581.60x = 89,118 × 35,898.96
4. Step 4: Simplify right side
   64,581.60x = 3,199,243,517.28
5. Step 5: Solve for x
   x = 3,199,243,517.28/64,581.60
6. Step 6: Final answer
   x = 49,538.00