Finding the Fourth Proportional to 127,920.77, 191,842.22 and 53,023.31

Step by Step Solution

1. Step 1: Write the proportion equation
   127,920.77 : 191,842.22 = 53,023.31 : x
2. Step 2: Convert to fraction form
   127,920.77/191,842.22 = 53,023.31/x
3. Step 3: Cross multiply
   127,920.77x = 191,842.22 × 53,023.31
4. Step 4: Simplify right side
   127,920.77x = 10,172,109,394.90
5. Step 5: Solve for x
   x = 10,172,109,394.90/127,920.77
6. Step 6: Final answer
   x = 79,518.83