Finding the Fourth Proportional to 94,910.72, 142,514.16 and 90,704.24

Step by Step Solution

1. Step 1: Write the proportion equation
   94,910.72 : 142,514.16 = 90,704.24 : x
2. Step 2: Convert to fraction form
   94,910.72/142,514.16 = 90,704.24/x
3. Step 3: Cross multiply
   94,910.72x = 142,514.16 × 90,704.24
4. Step 4: Simplify right side
   94,910.72x = 12,926,638,572.04
5. Step 5: Solve for x
   x = 12,926,638,572.04/94,910.72
6. Step 6: Final answer
   x = 136,197.88