Finding the Fourth Proportional to 127,007.87, 190,443.74 and 42,740.01

Step by Step Solution

1. Step 1: Write the proportion equation
   127,007.87 : 190,443.74 = 42,740.01 : x
2. Step 2: Convert to fraction form
   127,007.87/190,443.74 = 42,740.01/x
3. Step 3: Cross multiply
   127,007.87x = 190,443.74 × 42,740.01
4. Step 4: Simplify right side
   127,007.87x = 8,139,567,138.34
5. Step 5: Solve for x
   x = 8,139,567,138.34/127,007.87
6. Step 6: Final answer
   x = 64,087.11