Finding the Fourth Proportional to 60,610.68, 90,662.81 and 42,597.65

Step by Step Solution

1. Step 1: Write the proportion equation
   60,610.68 : 90,662.81 = 42,597.65 : x
2. Step 2: Convert to fraction form
   60,610.68/90,662.81 = 42,597.65/x
3. Step 3: Cross multiply
   60,610.68x = 90,662.81 × 42,597.65
4. Step 4: Simplify right side
   60,610.68x = 3,862,022,301.58
5. Step 5: Solve for x
   x = 3,862,022,301.58/60,610.68
6. Step 6: Final answer
   x = 63,718.51