Finding the Fourth Proportional to 501,886.47, 692,604.50 and 275,546.55

Step by Step Solution

1. Step 1: Write the proportion equation
   501,886.47 : 692,604.50 = 275,546.55 : x
2. Step 2: Convert to fraction form
   501,886.47/692,604.50 = 275,546.55/x
3. Step 3: Cross multiply
   501,886.47x = 692,604.50 × 275,546.55
4. Step 4: Simplify right side
   501,886.47x = 190,844,779,111.74
5. Step 5: Solve for x
   x = 190,844,779,111.74/501,886.47
6. Step 6: Final answer
   x = 380,254.88