Finding the Fourth Proportional to 256,404.02, 353,830.10 and 141,680.84

Step by Step Solution

1. Step 1: Write the proportion equation
   256,404.02 : 353,830.10 = 141,680.84 : x
2. Step 2: Convert to fraction form
   256,404.02/353,830.10 = 141,680.84/x
3. Step 3: Cross multiply
   256,404.02x = 353,830.10 × 141,680.84
4. Step 4: Simplify right side
   256,404.02x = 50,130,945,785.28
5. Step 5: Solve for x
   x = 50,130,945,785.28/256,404.02
6. Step 6: Final answer
   x = 195,515.44