Finding the Fourth Proportional to 140,637, 210,990.06 and 42,141

Step by Step Solution

1. Step 1: Write the proportion equation
   140,637 : 210,990.06 = 42,141 : x
2. Step 2: Convert to fraction form
   140,637/210,990.06 = 42,141/x
3. Step 3: Cross multiply
   140,637x = 210,990.06 × 42,141
4. Step 4: Simplify right side
   140,637x = 8,891,332,118.46
5. Step 5: Solve for x
   x = 8,891,332,118.46/140,637
6. Step 6: Final answer
   x = 63,221.86