Finding the Fourth Proportional to 72,892.56, 100,638.20 and 59,495.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.56 : 100,638.20 = 59,495.76 : x
2. Step 2: Convert to fraction form
   72,892.56/100,638.20 = 59,495.76/x
3. Step 3: Cross multiply
   72,892.56x = 100,638.20 × 59,495.76
4. Step 4: Simplify right side
   72,892.56x = 5,987,546,194.03
5. Step 5: Solve for x
   x = 5,987,546,194.03/72,892.56
6. Step 6: Final answer
   x = 82,142.08