Finding the Fourth Proportional to 118,911.56, 164,037.30 and 90,568.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,911.56 : 164,037.30 = 90,568.04 : x
2. Step 2: Convert to fraction form
   118,911.56/164,037.30 = 90,568.04/x
3. Step 3: Cross multiply
   118,911.56x = 164,037.30 × 90,568.04
4. Step 4: Simplify right side
   118,911.56x = 14,856,536,747.89
5. Step 5: Solve for x
   x = 14,856,536,747.89/118,911.56
6. Step 6: Final answer
   x = 124,937.70