Finding the Fourth Proportional to 421,360.41, 632,103.71 and 155,100.63

Step by Step Solution

1. Step 1: Write the proportion equation
   421,360.41 : 632,103.71 = 155,100.63 : x
2. Step 2: Convert to fraction form
   421,360.41/632,103.71 = 155,100.63/x
3. Step 3: Cross multiply
   421,360.41x = 632,103.71 × 155,100.63
4. Step 4: Simplify right side
   421,360.41x = 98,039,682,870.83
5. Step 5: Solve for x
   x = 98,039,682,870.83/421,360.41
6. Step 6: Final answer
   x = 232,674.17