Finding the Fourth Proportional to 881,096.22, 1,216,108.35 and 499,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   881,096.22 : 1,216,108.35 = 499,333.50 : x
2. Step 2: Convert to fraction form
   881,096.22/1,216,108.35 = 499,333.50/x
3. Step 3: Cross multiply
   881,096.22x = 1,216,108.35 × 499,333.50
4. Step 4: Simplify right side
   881,096.22x = 607,243,638,784.73
5. Step 5: Solve for x
   x = 607,243,638,784.73/881,096.22
6. Step 6: Final answer
   x = 689,191.06