Finding the Fourth Proportional to 851,535.15, 1,277,549.27 and 252,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   851,535.15 : 1,277,549.27 = 252,510.72 : x
2. Step 2: Convert to fraction form
   851,535.15/1,277,549.27 = 252,510.72/x
3. Step 3: Cross multiply
   851,535.15x = 1,277,549.27 × 252,510.72
4. Step 4: Simplify right side
   851,535.15x = 322,594,886,003.17
5. Step 5: Solve for x
   x = 322,594,886,003.17/851,535.15
6. Step 6: Final answer
   x = 378,839.19