Finding the Fourth Proportional to 43,036.94, 64,435.67 and 21,931.48

Step by Step Solution

1. Step 1: Write the proportion equation
   43,036.94 : 64,435.67 = 21,931.48 : x
2. Step 2: Convert to fraction form
   43,036.94/64,435.67 = 21,931.48/x
3. Step 3: Cross multiply
   43,036.94x = 64,435.67 × 21,931.48
4. Step 4: Simplify right side
   43,036.94x = 1,413,169,607.89
5. Step 5: Solve for x
   x = 1,413,169,607.89/43,036.94
6. Step 6: Final answer
   x = 32,836.20