Finding the Fourth Proportional to 83,131.69, 124,592.40 and 53,134.37

Step by Step Solution

1. Step 1: Write the proportion equation
   83,131.69 : 124,592.40 = 53,134.37 : x
2. Step 2: Convert to fraction form
   83,131.69/124,592.40 = 53,134.37/x
3. Step 3: Cross multiply
   83,131.69x = 124,592.40 × 53,134.37
4. Step 4: Simplify right side
   83,131.69x = 6,620,138,680.79
5. Step 5: Solve for x
   x = 6,620,138,680.79/83,131.69
6. Step 6: Final answer
   x = 79,634.36