Finding the Fourth Proportional to 559,483.56, 771,475.50 and 377,880.18

Step by Step Solution

1. Step 1: Write the proportion equation
   559,483.56 : 771,475.50 = 377,880.18 : x
2. Step 2: Convert to fraction form
   559,483.56/771,475.50 = 377,880.18/x
3. Step 3: Cross multiply
   559,483.56x = 771,475.50 × 377,880.18
4. Step 4: Simplify right side
   559,483.56x = 291,525,300,805.59
5. Step 5: Solve for x
   x = 291,525,300,805.59/559,483.56
6. Step 6: Final answer
   x = 521,061.42