Finding the Fourth Proportional to 60,662.12, 91,040.76 and 42,072.62

Step by Step Solution

1. Step 1: Write the proportion equation
   60,662.12 : 91,040.76 = 42,072.62 : x
2. Step 2: Convert to fraction form
   60,662.12/91,040.76 = 42,072.62/x
3. Step 3: Cross multiply
   60,662.12x = 91,040.76 × 42,072.62
4. Step 4: Simplify right side
   60,662.12x = 3,830,322,844.79
5. Step 5: Solve for x
   x = 3,830,322,844.79/60,662.12
6. Step 6: Final answer
   x = 63,141.93