Finding the Fourth Proportional to 432,667.45, 649,062.69 and 133,172.99

Step by Step Solution

1. Step 1: Write the proportion equation
   432,667.45 : 649,062.69 = 133,172.99 : x
2. Step 2: Convert to fraction form
   432,667.45/649,062.69 = 133,172.99/x
3. Step 3: Cross multiply
   432,667.45x = 649,062.69 × 133,172.99
4. Step 4: Simplify right side
   432,667.45x = 86,437,617,814.02
5. Step 5: Solve for x
   x = 86,437,617,814.02/432,667.45
6. Step 6: Final answer
   x = 199,778.42