Finding the Fourth Proportional to 749,405.12, 1,034,196.72 and 427,145.12

Step by Step Solution

1. Step 1: Write the proportion equation
   749,405.12 : 1,034,196.72 = 427,145.12 : x
2. Step 2: Convert to fraction form
   749,405.12/1,034,196.72 = 427,145.12/x
3. Step 3: Cross multiply
   749,405.12x = 1,034,196.72 × 427,145.12
4. Step 4: Simplify right side
   749,405.12x = 441,752,082,068.01
5. Step 5: Solve for x
   x = 441,752,082,068.01/749,405.12
6. Step 6: Final answer
   x = 589,470.33