Finding the Fourth Proportional to 456,886.71, 630,569.61 and 263,257.34

Step by Step Solution

1. Step 1: Write the proportion equation
   456,886.71 : 630,569.61 = 263,257.34 : x
2. Step 2: Convert to fraction form
   456,886.71/630,569.61 = 263,257.34/x
3. Step 3: Cross multiply
   456,886.71x = 630,569.61 × 263,257.34
4. Step 4: Simplify right side
   456,886.71x = 166,002,075,060.59
5. Step 5: Solve for x
   x = 166,002,075,060.59/456,886.71
6. Step 6: Final answer
   x = 363,333.12