Finding the Fourth Proportional to 140,142.08, 210,181.59 and 40,280.01

Step by Step Solution

1. Step 1: Write the proportion equation
   140,142.08 : 210,181.59 = 40,280.01 : x
2. Step 2: Convert to fraction form
   140,142.08/210,181.59 = 40,280.01/x
3. Step 3: Cross multiply
   140,142.08x = 210,181.59 × 40,280.01
4. Step 4: Simplify right side
   140,142.08x = 8,466,116,547.02
5. Step 5: Solve for x
   x = 8,466,116,547.02/140,142.08
6. Step 6: Final answer
   x = 60,410.95