Finding the Fourth Proportional to 127,019.41, 190,538.43 and 42,779.14

Step by Step Solution

1. Step 1: Write the proportion equation
   127,019.41 : 190,538.43 = 42,779.14 : x
2. Step 2: Convert to fraction form
   127,019.41/190,538.43 = 42,779.14/x
3. Step 3: Cross multiply
   127,019.41x = 190,538.43 × 42,779.14
4. Step 4: Simplify right side
   127,019.41x = 8,151,070,172.35
5. Step 5: Solve for x
   x = 8,151,070,172.35/127,019.41
6. Step 6: Final answer
   x = 64,171.85