Finding the Fourth Proportional to 563,088.69, 777,061.71 and 304,965.49

Step by Step Solution

1. Step 1: Write the proportion equation
   563,088.69 : 777,061.71 = 304,965.49 : x
2. Step 2: Convert to fraction form
   563,088.69/777,061.71 = 304,965.49/x
3. Step 3: Cross multiply
   563,088.69x = 777,061.71 × 304,965.49
4. Step 4: Simplify right side
   563,088.69x = 236,977,005,150.39
5. Step 5: Solve for x
   x = 236,977,005,150.39/563,088.69
6. Step 6: Final answer
   x = 420,852.01