Finding the Fourth Proportional to 117,087.04, 175,446.61 and 90,498.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,087.04 : 175,446.61 = 90,498.12 : x
2. Step 2: Convert to fraction form
   117,087.04/175,446.61 = 90,498.12/x
3. Step 3: Cross multiply
   117,087.04x = 175,446.61 × 90,498.12
4. Step 4: Simplify right side
   117,087.04x = 15,877,587,604.56
5. Step 5: Solve for x
   x = 15,877,587,604.56/117,087.04
6. Step 6: Final answer
   x = 135,604.99