Finding the Fourth Proportional to 56,561, 84,244.05 and 53,600.36

Step by Step Solution

1. Step 1: Write the proportion equation
   56,561 : 84,244.05 = 53,600.36 : x
2. Step 2: Convert to fraction form
   56,561/84,244.05 = 53,600.36/x
3. Step 3: Cross multiply
   56,561x = 84,244.05 × 53,600.36
4. Step 4: Simplify right side
   56,561x = 4,515,511,407.86
5. Step 5: Solve for x
   x = 4,515,511,407.86/56,561
6. Step 6: Final answer
   x = 79,834.36