Finding the Fourth Proportional to 53,540.79, 80,312.00 and 20,276.52

Step by Step Solution

1. Step 1: Write the proportion equation
   53,540.79 : 80,312.00 = 20,276.52 : x
2. Step 2: Convert to fraction form
   53,540.79/80,312.00 = 20,276.52/x
3. Step 3: Cross multiply
   53,540.79x = 80,312.00 × 20,276.52
4. Step 4: Simplify right side
   53,540.79x = 1,628,447,772.86
5. Step 5: Solve for x
   x = 1,628,447,772.86/53,540.79
6. Step 6: Final answer
   x = 30,415.09