Finding the Fourth Proportional to 127,729, 191,763.06 and 109,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   127,729 : 191,763.06 = 109,128.52 : x
2. Step 2: Convert to fraction form
   127,729/191,763.06 = 109,128.52/x
3. Step 3: Cross multiply
   127,729x = 191,763.06 × 109,128.52
4. Step 4: Simplify right side
   127,729x = 20,926,818,928.47
5. Step 5: Solve for x
   x = 20,926,818,928.47/127,729
6. Step 6: Final answer
   x = 163,837.65