Finding the Fourth Proportional to 43,009.68, 64,412.72 and 21,897.84

Step by Step Solution

1. Step 1: Write the proportion equation
   43,009.68 : 64,412.72 = 21,897.84 : x
2. Step 2: Convert to fraction form
   43,009.68/64,412.72 = 21,897.84/x
3. Step 3: Cross multiply
   43,009.68x = 64,412.72 × 21,897.84
4. Step 4: Simplify right side
   43,009.68x = 1,410,499,436.52
5. Step 5: Solve for x
   x = 1,410,499,436.52/43,009.68
6. Step 6: Final answer
   x = 32,794.93