Finding the Fourth Proportional to 516,096.89, 774,145.40 and 161,141.31

Step by Step Solution

1. Step 1: Write the proportion equation
   516,096.89 : 774,145.40 = 161,141.31 : x
2. Step 2: Convert to fraction form
   516,096.89/774,145.40 = 161,141.31/x
3. Step 3: Cross multiply
   516,096.89x = 774,145.40 × 161,141.31
4. Step 4: Simplify right side
   516,096.89x = 124,746,803,886.47
5. Step 5: Solve for x
   x = 124,746,803,886.47/516,096.89
6. Step 6: Final answer
   x = 241,711.99