Finding the Fourth Proportional to 91,635.41, 137,219.78 and 60,375.89

Step by Step Solution

1. Step 1: Write the proportion equation
   91,635.41 : 137,219.78 = 60,375.89 : x
2. Step 2: Convert to fraction form
   91,635.41/137,219.78 = 60,375.89/x
3. Step 3: Cross multiply
   91,635.41x = 137,219.78 × 60,375.89
4. Step 4: Simplify right side
   91,635.41x = 8,284,766,041.22
5. Step 5: Solve for x
   x = 8,284,766,041.22/91,635.41
6. Step 6: Final answer
   x = 90,410.09