Finding the Fourth Proportional to 105,081.84, 157,501.80 and 45,903.60

Step by Step Solution

1. Step 1: Write the proportion equation
   105,081.84 : 157,501.80 = 45,903.60 : x
2. Step 2: Convert to fraction form
   105,081.84/157,501.80 = 45,903.60/x
3. Step 3: Cross multiply
   105,081.84x = 157,501.80 × 45,903.60
4. Step 4: Simplify right side
   105,081.84x = 7,229,899,626.48
5. Step 5: Solve for x
   x = 7,229,899,626.48/105,081.84
6. Step 6: Final answer
   x = 68,802.56