Finding the Fourth Proportional to 761,429.34, 1,050,757.27 and 421,900.38

Step by Step Solution

1. Step 1: Write the proportion equation
   761,429.34 : 1,050,757.27 = 421,900.38 : x
2. Step 2: Convert to fraction form
   761,429.34/1,050,757.27 = 421,900.38/x
3. Step 3: Cross multiply
   761,429.34x = 1,050,757.27 × 421,900.38
4. Step 4: Simplify right side
   761,429.34x = 443,314,891,500.76
5. Step 5: Solve for x
   x = 443,314,891,500.76/761,429.34
6. Step 6: Final answer
   x = 582,214.09