Finding the Fourth Proportional to 83,091.60, 124,643.88 and 40,994.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83,091.60 : 124,643.88 = 40,994.28 : x
2. Step 2: Convert to fraction form
   83,091.60/124,643.88 = 40,994.28/x
3. Step 3: Cross multiply
   83,091.60x = 124,643.88 × 40,994.28
4. Step 4: Simplify right side
   83,091.60x = 5,109,686,117.01
5. Step 5: Solve for x
   x = 5,109,686,117.01/83,091.60
6. Step 6: Final answer
   x = 61,494.62