Finding the Fourth Proportional to 64,521.30, 89,037.60 and 35,840.04

Step by Step Solution

1. Step 1: Write the proportion equation
   64,521.30 : 89,037.60 = 35,840.04 : x
2. Step 2: Convert to fraction form
   64,521.30/89,037.60 = 35,840.04/x
3. Step 3: Cross multiply
   64,521.30x = 89,037.60 × 35,840.04
4. Step 4: Simplify right side
   64,521.30x = 3,191,111,145.50
5. Step 5: Solve for x
   x = 3,191,111,145.50/64,521.30
6. Step 6: Final answer
   x = 49,458.26