Finding the Fourth Proportional to 85,754.63, 128,675.86 and 40,826.82

Step by Step Solution

1. Step 1: Write the proportion equation
   85,754.63 : 128,675.86 = 40,826.82 : x
2. Step 2: Convert to fraction form
   85,754.63/128,675.86 = 40,826.82/x
3. Step 3: Cross multiply
   85,754.63x = 128,675.86 × 40,826.82
4. Step 4: Simplify right side
   85,754.63x = 5,253,426,174.57
5. Step 5: Solve for x
   x = 5,253,426,174.57/85,754.63
6. Step 6: Final answer
   x = 61,261.14