Finding the Fourth Proportional to 277,386.82, 416,123.43 and 90,354.82

Step by Step Solution

1. Step 1: Write the proportion equation
   277,386.82 : 416,123.43 = 90,354.82 : x
2. Step 2: Convert to fraction form
   277,386.82/416,123.43 = 90,354.82/x
3. Step 3: Cross multiply
   277,386.82x = 416,123.43 × 90,354.82
4. Step 4: Simplify right side
   277,386.82x = 37,598,757,615.43
5. Step 5: Solve for x
   x = 37,598,757,615.43/277,386.82
6. Step 6: Final answer
   x = 135,546.30