Finding the Fourth Proportional to 60,808, 91,137.12 and 43,182.40

Step by Step Solution

1. Step 1: Write the proportion equation
   60,808 : 91,137.12 = 43,182.40 : x
2. Step 2: Convert to fraction form
   60,808/91,137.12 = 43,182.40/x
3. Step 3: Cross multiply
   60,808x = 91,137.12 × 43,182.40
4. Step 4: Simplify right side
   60,808x = 3,935,519,570.69
5. Step 5: Solve for x
   x = 3,935,519,570.69/60,808
6. Step 6: Final answer
   x = 64,720.42