Finding the Fourth Proportional to 140,694.63, 210,978.15 and 60,694.86

Step by Step Solution

1. Step 1: Write the proportion equation
   140,694.63 : 210,978.15 = 60,694.86 : x
2. Step 2: Convert to fraction form
   140,694.63/210,978.15 = 60,694.86/x
3. Step 3: Cross multiply
   140,694.63x = 210,978.15 × 60,694.86
4. Step 4: Simplify right side
   140,694.63x = 12,805,289,277.31
5. Step 5: Solve for x
   x = 12,805,289,277.31/140,694.63
6. Step 6: Final answer
   x = 91,014.77