Finding the Fourth Proportional to 563,043.83, 776,807.42 and 321,152.31

Step by Step Solution

1. Step 1: Write the proportion equation
   563,043.83 : 776,807.42 = 321,152.31 : x
2. Step 2: Convert to fraction form
   563,043.83/776,807.42 = 321,152.31/x
3. Step 3: Cross multiply
   563,043.83x = 776,807.42 × 321,152.31
4. Step 4: Simplify right side
   563,043.83x = 249,473,495,752.38
5. Step 5: Solve for x
   x = 249,473,495,752.38/563,043.83
6. Step 6: Final answer
   x = 443,080.07