Finding the Fourth Proportional to 670,912, 925,858.56 and 369,099.52

Step by Step Solution

1. Step 1: Write the proportion equation
   670,912 : 925,858.56 = 369,099.52 : x
2. Step 2: Convert to fraction form
   670,912/925,858.56 = 369,099.52/x
3. Step 3: Cross multiply
   670,912x = 925,858.56 × 369,099.52
4. Step 4: Simplify right side
   670,912x = 341,733,950,083.89
5. Step 5: Solve for x
   x = 341,733,950,083.89/670,912
6. Step 6: Final answer
   x = 509,357.34