Finding the Fourth Proportional to 81,642.87, 112,669.25 and 45,835.61

Step by Step Solution

1. Step 1: Write the proportion equation
   81,642.87 : 112,669.25 = 45,835.61 : x
2. Step 2: Convert to fraction form
   81,642.87/112,669.25 = 45,835.61/x
3. Step 3: Cross multiply
   81,642.87x = 112,669.25 × 45,835.61
4. Step 4: Simplify right side
   81,642.87x = 5,164,263,009.47
5. Step 5: Solve for x
   x = 5,164,263,009.47/81,642.87
6. Step 6: Final answer
   x = 63,254.31