Finding the Fourth Proportional to 174,601.36, 240,940.74 and 99,145

Step by Step Solution

1. Step 1: Write the proportion equation
   174,601.36 : 240,940.74 = 99,145 : x
2. Step 2: Convert to fraction form
   174,601.36/240,940.74 = 99,145/x
3. Step 3: Cross multiply
   174,601.36x = 240,940.74 × 99,145
4. Step 4: Simplify right side
   174,601.36x = 23,888,069,667.30
5. Step 5: Solve for x
   x = 23,888,069,667.30/174,601.36
6. Step 6: Final answer
   x = 136,814.91