Finding the Fourth Proportional to 81,050.34, 111,908.70 and 52,386.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,050.34 : 111,908.70 = 52,386.96 : x
2. Step 2: Convert to fraction form
   81,050.34/111,908.70 = 52,386.96/x
3. Step 3: Cross multiply
   81,050.34x = 111,908.70 × 52,386.96
4. Step 4: Simplify right side
   81,050.34x = 5,862,556,590.55
5. Step 5: Solve for x
   x = 5,862,556,590.55/81,050.34
6. Step 6: Final answer
   x = 72,332.29