Finding the Fourth Proportional to 499,316.89, 748,980.81 and 144,333.98

Step by Step Solution

1. Step 1: Write the proportion equation
   499,316.89 : 748,980.81 = 144,333.98 : x
2. Step 2: Convert to fraction form
   499,316.89/748,980.81 = 144,333.98/x
3. Step 3: Cross multiply
   499,316.89x = 748,980.81 × 144,333.98
4. Step 4: Simplify right side
   499,316.89x = 108,103,384,527.72
5. Step 5: Solve for x
   x = 108,103,384,527.72/499,316.89
6. Step 6: Final answer
   x = 216,502.56