Finding the Fourth Proportional to 291,499.46, 436,261.56 and 179,250.77

Step by Step Solution

1. Step 1: Write the proportion equation
   291,499.46 : 436,261.56 = 179,250.77 : x
2. Step 2: Convert to fraction form
   291,499.46/436,261.56 = 179,250.77/x
3. Step 3: Cross multiply
   291,499.46x = 436,261.56 × 179,250.77
4. Step 4: Simplify right side
   291,499.46x = 78,200,218,370.09
5. Step 5: Solve for x
   x = 78,200,218,370.09/291,499.46
6. Step 6: Final answer
   x = 268,268.83