Finding the Fourth Proportional to 165,983.04, 229,056.12 and 90,531

Step by Step Solution

1. Step 1: Write the proportion equation
   165,983.04 : 229,056.12 = 90,531 : x
2. Step 2: Convert to fraction form
   165,983.04/229,056.12 = 90,531/x
3. Step 3: Cross multiply
   165,983.04x = 229,056.12 × 90,531
4. Step 4: Simplify right side
   165,983.04x = 20,736,679,599.72
5. Step 5: Solve for x
   x = 20,736,679,599.72/165,983.04
6. Step 6: Final answer
   x = 124,932.52