Finding the Fourth Proportional to 140,402.02, 193,643.30 and 106,061.36

Step by Step Solution

1. Step 1: Write the proportion equation
   140,402.02 : 193,643.30 = 106,061.36 : x
2. Step 2: Convert to fraction form
   140,402.02/193,643.30 = 106,061.36/x
3. Step 3: Cross multiply
   140,402.02x = 193,643.30 × 106,061.36
4. Step 4: Simplify right side
   140,402.02x = 20,538,071,752.89
5. Step 5: Solve for x
   x = 20,538,071,752.89/140,402.02
6. Step 6: Final answer
   x = 146,280.46