Finding the Fourth Proportional to 127,139.51, 175,460.72 and 70,550.88

Step by Step Solution

1. Step 1: Write the proportion equation
   127,139.51 : 175,460.72 = 70,550.88 : x
2. Step 2: Convert to fraction form
   127,139.51/175,460.72 = 70,550.88/x
3. Step 3: Cross multiply
   127,139.51x = 175,460.72 × 70,550.88
4. Step 4: Simplify right side
   127,139.51x = 12,378,908,201.43
5. Step 5: Solve for x
   x = 12,378,908,201.43/127,139.51
6. Step 6: Final answer
   x = 97,364.76