Finding the Fourth Proportional to 128,308.52, 177,058.58 and 70,944.52

Step by Step Solution

1. Step 1: Write the proportion equation
   128,308.52 : 177,058.58 = 70,944.52 : x
2. Step 2: Convert to fraction form
   128,308.52/177,058.58 = 70,944.52/x
3. Step 3: Cross multiply
   128,308.52x = 177,058.58 × 70,944.52
4. Step 4: Simplify right side
   128,308.52x = 12,561,335,969.98
5. Step 5: Solve for x
   x = 12,561,335,969.98/128,308.52
6. Step 6: Final answer
   x = 97,899.47