Finding the Fourth Proportional to 127,139.58, 175,443.84 and 70,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,139.58 : 175,443.84 = 70,546.50 : x
2. Step 2: Convert to fraction form
   127,139.58/175,443.84 = 70,546.50/x
3. Step 3: Cross multiply
   127,139.58x = 175,443.84 × 70,546.50
4. Step 4: Simplify right side
   127,139.58x = 12,376,948,858.56
5. Step 5: Solve for x
   x = 12,376,948,858.56/127,139.58
6. Step 6: Final answer
   x = 97,349.30