Finding the Fourth Proportional to 53,112.01, 79,695.78 and 21,525.43

Step by Step Solution

1. Step 1: Write the proportion equation
   53,112.01 : 79,695.78 = 21,525.43 : x
2. Step 2: Convert to fraction form
   53,112.01/79,695.78 = 21,525.43/x
3. Step 3: Cross multiply
   53,112.01x = 79,695.78 × 21,525.43
4. Step 4: Simplify right side
   53,112.01x = 1,715,485,933.69
5. Step 5: Solve for x
   x = 1,715,485,933.69/53,112.01
6. Step 6: Final answer
   x = 32,299.40