Finding the Fourth Proportional to 108,392.30, 149,515.89 and 71,598.74

Step by Step Solution

1. Step 1: Write the proportion equation
   108,392.30 : 149,515.89 = 71,598.74 : x
2. Step 2: Convert to fraction form
   108,392.30/149,515.89 = 71,598.74/x
3. Step 3: Cross multiply
   108,392.30x = 149,515.89 × 71,598.74
4. Step 4: Simplify right side
   108,392.30x = 10,705,149,333.98
5. Step 5: Solve for x
   x = 10,705,149,333.98/108,392.30
6. Step 6: Final answer
   x = 98,763.01