Finding the Fourth Proportional to 46,978.34, 64,839.87 and 43,195.50

Step by Step Solution

1. Step 1: Write the proportion equation
   46,978.34 : 64,839.87 = 43,195.50 : x
2. Step 2: Convert to fraction form
   46,978.34/64,839.87 = 43,195.50/x
3. Step 3: Cross multiply
   46,978.34x = 64,839.87 × 43,195.50
4. Step 4: Simplify right side
   46,978.34x = 2,800,790,604.59
5. Step 5: Solve for x
   x = 2,800,790,604.59/46,978.34
6. Step 6: Final answer
   x = 59,618.77