Finding the Fourth Proportional to 108,700.75, 149,931.15 and 105,043

Step by Step Solution

1. Step 1: Write the proportion equation
   108,700.75 : 149,931.15 = 105,043 : x
2. Step 2: Convert to fraction form
   108,700.75/149,931.15 = 105,043/x
3. Step 3: Cross multiply
   108,700.75x = 149,931.15 × 105,043
4. Step 4: Simplify right side
   108,700.75x = 15,749,217,789.45
5. Step 5: Solve for x
   x = 15,749,217,789.45/108,700.75
6. Step 6: Final answer
   x = 144,886.01