Finding the Fourth Proportional to 62,974.34, 86,901.45 and 40,618.34

Step by Step Solution

1. Step 1: Write the proportion equation
   62,974.34 : 86,901.45 = 40,618.34 : x
2. Step 2: Convert to fraction form
   62,974.34/86,901.45 = 40,618.34/x
3. Step 3: Cross multiply
   62,974.34x = 86,901.45 × 40,618.34
4. Step 4: Simplify right side
   62,974.34x = 3,529,792,642.59
5. Step 5: Solve for x
   x = 3,529,792,642.59/62,974.34
6. Step 6: Final answer
   x = 56,051.28