Finding the Fourth Proportional to 256,443.77, 353,881.51 and 141,726.71

Step by Step Solution

1. Step 1: Write the proportion equation
   256,443.77 : 353,881.51 = 141,726.71 : x
2. Step 2: Convert to fraction form
   256,443.77/353,881.51 = 141,726.71/x
3. Step 3: Cross multiply
   256,443.77x = 353,881.51 × 141,726.71
4. Step 4: Simplify right side
   256,443.77x = 50,154,462,672.52
5. Step 5: Solve for x
   x = 50,154,462,672.52/256,443.77
6. Step 6: Final answer
   x = 195,576.84