Finding the Fourth Proportional to 76,941.72, 106,227.60 and 59,002.20

Step by Step Solution

1. Step 1: Write the proportion equation
   76,941.72 : 106,227.60 = 59,002.20 : x
2. Step 2: Convert to fraction form
   76,941.72/106,227.60 = 59,002.20/x
3. Step 3: Cross multiply
   76,941.72x = 106,227.60 × 59,002.20
4. Step 4: Simplify right side
   76,941.72x = 6,267,662,100.72
5. Step 5: Solve for x
   x = 6,267,662,100.72/76,941.72
6. Step 6: Final answer
   x = 81,459.86