Finding the Fourth Proportional to 130,031.04, 195,108.24 and 90,111.42

Step by Step Solution

1. Step 1: Write the proportion equation
   130,031.04 : 195,108.24 = 90,111.42 : x
2. Step 2: Convert to fraction form
   130,031.04/195,108.24 = 90,111.42/x
3. Step 3: Cross multiply
   130,031.04x = 195,108.24 × 90,111.42
4. Step 4: Simplify right side
   130,031.04x = 17,581,480,560.10
5. Step 5: Solve for x
   x = 17,581,480,560.10/130,031.04
6. Step 6: Final answer
   x = 135,209.87