Finding the Fourth Proportional to 112,783.80, 155,641.59 and 65,036.46

Step by Step Solution

1. Step 1: Write the proportion equation
   112,783.80 : 155,641.59 = 65,036.46 : x
2. Step 2: Convert to fraction form
   112,783.80/155,641.59 = 65,036.46/x
3. Step 3: Cross multiply
   112,783.80x = 155,641.59 × 65,036.46
4. Step 4: Simplify right side
   112,783.80x = 10,122,378,042.37
5. Step 5: Solve for x
   x = 10,122,378,042.37/112,783.80
6. Step 6: Final answer
   x = 89,750.28