Finding the Fourth Proportional to 127,139.40, 175,454.60 and 69,784.09

Step by Step Solution

1. Step 1: Write the proportion equation
   127,139.40 : 175,454.60 = 69,784.09 : x
2. Step 2: Convert to fraction form
   127,139.40/175,454.60 = 69,784.09/x
3. Step 3: Cross multiply
   127,139.40x = 175,454.60 × 69,784.09
4. Step 4: Simplify right side
   127,139.40x = 12,243,939,597.31
5. Step 5: Solve for x
   x = 12,243,939,597.31/127,139.40
6. Step 6: Final answer
   x = 96,303.27