Finding the Fourth Proportional to 256,810.89, 384,965.89 and 107,094.03

Step by Step Solution

1. Step 1: Write the proportion equation
   256,810.89 : 384,965.89 = 107,094.03 : x
2. Step 2: Convert to fraction form
   256,810.89/384,965.89 = 107,094.03/x
3. Step 3: Cross multiply
   256,810.89x = 384,965.89 × 107,094.03
4. Step 4: Simplify right side
   256,810.89x = 41,227,549,327.91
5. Step 5: Solve for x
   x = 41,227,549,327.91/256,810.89
6. Step 6: Final answer
   x = 160,536.61