Finding the Fourth Proportional to 76,164.87, 114,185.34 and 51,128.58

Step by Step Solution

1. Step 1: Write the proportion equation
   76,164.87 : 114,185.34 = 51,128.58 : x
2. Step 2: Convert to fraction form
   76,164.87/114,185.34 = 51,128.58/x
3. Step 3: Cross multiply
   76,164.87x = 114,185.34 × 51,128.58
4. Step 4: Simplify right side
   76,164.87x = 5,838,134,291.02
5. Step 5: Solve for x
   x = 5,838,134,291.02/76,164.87
6. Step 6: Final answer
   x = 76,651.27