Finding the Fourth Proportional to 328,492.88, 492,766.20 and 103,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   328,492.88 : 492,766.20 = 103,868.72 : x
2. Step 2: Convert to fraction form
   328,492.88/492,766.20 = 103,868.72/x
3. Step 3: Cross multiply
   328,492.88x = 492,766.20 × 103,868.72
4. Step 4: Simplify right side
   328,492.88x = 51,182,994,453.26
5. Step 5: Solve for x
   x = 51,182,994,453.26/328,492.88
6. Step 6: Final answer
   x = 155,811.58