Finding the Fourth Proportional to 777,019.50, 1,165,595.27 and 216,054

Step by Step Solution

1. Step 1: Write the proportion equation
   777,019.50 : 1,165,595.27 = 216,054 : x
2. Step 2: Convert to fraction form
   777,019.50/1,165,595.27 = 216,054/x
3. Step 3: Cross multiply
   777,019.50x = 1,165,595.27 × 216,054
4. Step 4: Simplify right side
   777,019.50x = 251,831,519,384.31
5. Step 5: Solve for x
   x = 251,831,519,384.31/777,019.50
6. Step 6: Final answer
   x = 324,099.36