Finding the Fourth Proportional to 81,034.88, 111,842.40 and 52,389.76

Step by Step Solution

1. Step 1: Write the proportion equation
   81,034.88 : 111,842.40 = 52,389.76 : x
2. Step 2: Convert to fraction form
   81,034.88/111,842.40 = 52,389.76/x
3. Step 3: Cross multiply
   81,034.88x = 111,842.40 × 52,389.76
4. Step 4: Simplify right side
   81,034.88x = 5,859,396,493.82
5. Step 5: Solve for x
   x = 5,859,396,493.82/81,034.88
6. Step 6: Final answer
   x = 72,307.09