Finding the Fourth Proportional to 759,312.12, 1,047,805.72 and 419,760.12

Step by Step Solution

1. Step 1: Write the proportion equation
   759,312.12 : 1,047,805.72 = 419,760.12 : x
2. Step 2: Convert to fraction form
   759,312.12/1,047,805.72 = 419,760.12/x
3. Step 3: Cross multiply
   759,312.12x = 1,047,805.72 × 419,760.12
4. Step 4: Simplify right side
   759,312.12x = 439,827,054,763.89
5. Step 5: Solve for x
   x = 439,827,054,763.89/759,312.12
6. Step 6: Final answer
   x = 579,244.09