Finding the Fourth Proportional to 85,789.76, 128,682.81 and 23,460.26

Step by Step Solution

1. Step 1: Write the proportion equation
   85,789.76 : 128,682.81 = 23,460.26 : x
2. Step 2: Convert to fraction form
   85,789.76/128,682.81 = 23,460.26/x
3. Step 3: Cross multiply
   85,789.76x = 128,682.81 × 23,460.26
4. Step 4: Simplify right side
   85,789.76x = 3,018,931,536.72
5. Step 5: Solve for x
   x = 3,018,931,536.72/85,789.76
6. Step 6: Final answer
   x = 35,189.88