Finding the Fourth Proportional to 389,002.16, 536,970.56 and 261,751.56

Step by Step Solution

1. Step 1: Write the proportion equation
   389,002.16 : 536,970.56 = 261,751.56 : x
2. Step 2: Convert to fraction form
   389,002.16/536,970.56 = 261,751.56/x
3. Step 3: Cross multiply
   389,002.16x = 536,970.56 × 261,751.56
4. Step 4: Simplify right side
   389,002.16x = 140,552,881,754.07
5. Step 5: Solve for x
   x = 140,552,881,754.07/389,002.16
6. Step 6: Final answer
   x = 361,316.46