Finding the Fourth Proportional to 240,397.56, 331,773.42 and 138,426.84

Step by Step Solution

1. Step 1: Write the proportion equation
   240,397.56 : 331,773.42 = 138,426.84 : x
2. Step 2: Convert to fraction form
   240,397.56/331,773.42 = 138,426.84/x
3. Step 3: Cross multiply
   240,397.56x = 331,773.42 × 138,426.84
4. Step 4: Simplify right side
   240,397.56x = 45,926,346,126.59
5. Step 5: Solve for x
   x = 45,926,346,126.59/240,397.56
6. Step 6: Final answer
   x = 191,043.31