Finding the Fourth Proportional to 127,890.72, 176,482.72 and 70,540.02

Step by Step Solution

1. Step 1: Write the proportion equation
   127,890.72 : 176,482.72 = 70,540.02 : x
2. Step 2: Convert to fraction form
   127,890.72/176,482.72 = 70,540.02/x
3. Step 3: Cross multiply
   127,890.72x = 176,482.72 × 70,540.02
4. Step 4: Simplify right side
   127,890.72x = 12,449,093,539.69
5. Step 5: Solve for x
   x = 12,449,093,539.69/127,890.72
6. Step 6: Final answer
   x = 97,341.65