Finding the Fourth Proportional to 60,676.49, 90,876.53 and 53,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,676.49 : 90,876.53 = 53,581.50 : x
2. Step 2: Convert to fraction form
   60,676.49/90,876.53 = 53,581.50/x
3. Step 3: Cross multiply
   60,676.49x = 90,876.53 × 53,581.50
4. Step 4: Simplify right side
   60,676.49x = 4,869,300,926.15
5. Step 5: Solve for x
   x = 4,869,300,926.15/60,676.49
6. Step 6: Final answer
   x = 80,250.20