Finding the Fourth Proportional to 140,187.78, 210,276.18 and 46,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,187.78 : 210,276.18 = 46,693.50 : x
2. Step 2: Convert to fraction form
   140,187.78/210,276.18 = 46,693.50/x
3. Step 3: Cross multiply
   140,187.78x = 210,276.18 × 46,693.50
4. Step 4: Simplify right side
   140,187.78x = 9,818,530,810.83
5. Step 5: Solve for x
   x = 9,818,530,810.83/140,187.78
6. Step 6: Final answer
   x = 70,038.42