Finding the Fourth Proportional to 174,086.96, 260,780.52 and 90,806

Step by Step Solution

1. Step 1: Write the proportion equation
   174,086.96 : 260,780.52 = 90,806 : x
2. Step 2: Convert to fraction form
   174,086.96/260,780.52 = 90,806/x
3. Step 3: Cross multiply
   174,086.96x = 260,780.52 × 90,806
4. Step 4: Simplify right side
   174,086.96x = 23,680,435,899.12
5. Step 5: Solve for x
   x = 23,680,435,899.12/174,086.96
6. Step 6: Final answer
   x = 136,026.48