Finding the Fourth Proportional to 250,312.88, 375,492.38 and 81,834.10

Step by Step Solution

1. Step 1: Write the proportion equation
   250,312.88 : 375,492.38 = 81,834.10 : x
2. Step 2: Convert to fraction form
   250,312.88/375,492.38 = 81,834.10/x
3. Step 3: Cross multiply
   250,312.88x = 375,492.38 × 81,834.10
4. Step 4: Simplify right side
   250,312.88x = 30,728,080,316.73
5. Step 5: Solve for x
   x = 30,728,080,316.73/250,312.88
6. Step 6: Final answer
   x = 122,758.69