Finding the Fourth Proportional to 625,510.49, 938,257.23 and 152,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   625,510.49 : 938,257.23 = 152,196.31 : x
2. Step 2: Convert to fraction form
   625,510.49/938,257.23 = 152,196.31/x
3. Step 3: Cross multiply
   625,510.49x = 938,257.23 × 152,196.31
4. Step 4: Simplify right side
   625,510.49x = 142,799,288,236.82
5. Step 5: Solve for x
   x = 142,799,288,236.82/625,510.49
6. Step 6: Final answer
   x = 228,292.40