Finding the Fourth Proportional to 329,870.51, 455,275.74 and 226,419.69

Step by Step Solution

1. Step 1: Write the proportion equation
   329,870.51 : 455,275.74 = 226,419.69 : x
2. Step 2: Convert to fraction form
   329,870.51/455,275.74 = 226,419.69/x
3. Step 3: Cross multiply
   329,870.51x = 455,275.74 × 226,419.69
4. Step 4: Simplify right side
   329,870.51x = 103,083,389,638.94
5. Step 5: Solve for x
   x = 103,083,389,638.94/329,870.51
6. Step 6: Final answer
   x = 312,496.53