Finding the Fourth Proportional to 53,005.59, 79,507.17 and 21,840.84

Step by Step Solution

1. Step 1: Write the proportion equation
   53,005.59 : 79,507.17 = 21,840.84 : x
2. Step 2: Convert to fraction form
   53,005.59/79,507.17 = 21,840.84/x
3. Step 3: Cross multiply
   53,005.59x = 79,507.17 × 21,840.84
4. Step 4: Simplify right side
   53,005.59x = 1,736,503,378.82
5. Step 5: Solve for x
   x = 1,736,503,378.82/53,005.59
6. Step 6: Final answer
   x = 32,760.76