Finding the Fourth Proportional to 126,045.72, 173,886.42 and 85,196.76

Step by Step Solution

1. Step 1: Write the proportion equation
   126,045.72 : 173,886.42 = 85,196.76 : x
2. Step 2: Convert to fraction form
   126,045.72/173,886.42 = 85,196.76/x
3. Step 3: Cross multiply
   126,045.72x = 173,886.42 × 85,196.76
4. Step 4: Simplify right side
   126,045.72x = 14,814,559,592.00
5. Step 5: Solve for x
   x = 14,814,559,592.00/126,045.72
6. Step 6: Final answer
   x = 117,533.22