Finding the Fourth Proportional to 53,293.37, 79,893.01 and 21,729.83

Step by Step Solution

1. Step 1: Write the proportion equation
   53,293.37 : 79,893.01 = 21,729.83 : x
2. Step 2: Convert to fraction form
   53,293.37/79,893.01 = 21,729.83/x
3. Step 3: Cross multiply
   53,293.37x = 79,893.01 × 21,729.83
4. Step 4: Simplify right side
   53,293.37x = 1,736,061,071.70
5. Step 5: Solve for x
   x = 1,736,061,071.70/53,293.37
6. Step 6: Final answer
   x = 32,575.56