Finding the Fourth Proportional to 140,837.76, 194,374.56 and 90,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,837.76 : 194,374.56 = 90,682.56 : x
2. Step 2: Convert to fraction form
   140,837.76/194,374.56 = 90,682.56/x
3. Step 3: Cross multiply
   140,837.76x = 194,374.56 × 90,682.56
4. Step 4: Simplify right side
   140,837.76x = 17,626,382,699.67
5. Step 5: Solve for x
   x = 17,626,382,699.67/140,837.76
6. Step 6: Final answer
   x = 125,153.81