Finding the Fourth Proportional to 505,123.79, 757,810.52 and 150,136.32

Step by Step Solution

1. Step 1: Write the proportion equation
   505,123.79 : 757,810.52 = 150,136.32 : x
2. Step 2: Convert to fraction form
   505,123.79/757,810.52 = 150,136.32/x
3. Step 3: Cross multiply
   505,123.79x = 757,810.52 × 150,136.32
4. Step 4: Simplify right side
   505,123.79x = 113,774,881,979.41
5. Step 5: Solve for x
   x = 113,774,881,979.41/505,123.79
6. Step 6: Final answer
   x = 225,241.59