Finding the Fourth Proportional to 127,759.90, 191,758.12 and 64,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   127,759.90 : 191,758.12 = 64,624.72 : x
2. Step 2: Convert to fraction form
   127,759.90/191,758.12 = 64,624.72/x
3. Step 3: Cross multiply
   127,759.90x = 191,758.12 × 64,624.72
4. Step 4: Simplify right side
   127,759.90x = 12,392,314,812.73
5. Step 5: Solve for x
   x = 12,392,314,812.73/127,759.90
6. Step 6: Final answer
   x = 96,996.90