Finding the Fourth Proportional to 465,443.10, 698,204.76 and 128,483.82

Step by Step Solution

1. Step 1: Write the proportion equation
   465,443.10 : 698,204.76 = 128,483.82 : x
2. Step 2: Convert to fraction form
   465,443.10/698,204.76 = 128,483.82/x
3. Step 3: Cross multiply
   465,443.10x = 698,204.76 × 128,483.82
4. Step 4: Simplify right side
   465,443.10x = 89,708,014,706.98
5. Step 5: Solve for x
   x = 89,708,014,706.98/465,443.10
6. Step 6: Final answer
   x = 192,736.80