Finding the Fourth Proportional to 64,209.72, 88,607.71 and 35,528.64

Step by Step Solution

1. Step 1: Write the proportion equation
   64,209.72 : 88,607.71 = 35,528.64 : x
2. Step 2: Convert to fraction form
   64,209.72/88,607.71 = 35,528.64/x
3. Step 3: Cross multiply
   64,209.72x = 88,607.71 × 35,528.64
4. Step 4: Simplify right side
   64,209.72x = 3,148,111,429.81
5. Step 5: Solve for x
   x = 3,148,111,429.81/64,209.72
6. Step 6: Final answer
   x = 49,028.58