Finding the Fourth Proportional to 66,483.86, 91,756.56 and 42,287.08

Step by Step Solution

1. Step 1: Write the proportion equation
   66,483.86 : 91,756.56 = 42,287.08 : x
2. Step 2: Convert to fraction form
   66,483.86/91,756.56 = 42,287.08/x
3. Step 3: Cross multiply
   66,483.86x = 91,756.56 × 42,287.08
4. Step 4: Simplify right side
   66,483.86x = 3,880,116,993.24
5. Step 5: Solve for x
   x = 3,880,116,993.24/66,483.86
6. Step 6: Final answer
   x = 58,361.79