Finding the Fourth Proportional to 76,556.32, 105,677.27 and 51,053.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,556.32 : 105,677.27 = 51,053.47 : x
2. Step 2: Convert to fraction form
   76,556.32/105,677.27 = 51,053.47/x
3. Step 3: Cross multiply
   76,556.32x = 105,677.27 × 51,053.47
4. Step 4: Simplify right side
   76,556.32x = 5,395,191,333.63
5. Step 5: Solve for x
   x = 5,395,191,333.63/76,556.32
6. Step 6: Final answer
   x = 70,473.49