Finding the Fourth Proportional to 83,672.07, 115,468.83 and 45,431.61

Step by Step Solution

1. Step 1: Write the proportion equation
   83,672.07 : 115,468.83 = 45,431.61 : x
2. Step 2: Convert to fraction form
   83,672.07/115,468.83 = 45,431.61/x
3. Step 3: Cross multiply
   83,672.07x = 115,468.83 × 45,431.61
4. Step 4: Simplify right side
   83,672.07x = 5,245,934,851.72
5. Step 5: Solve for x
   x = 5,245,934,851.72/83,672.07
6. Step 6: Final answer
   x = 62,696.37