Finding the Fourth Proportional to 81,114.56, 121,502.34 and 65,233.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,114.56 : 121,502.34 = 65,233.70 : x
2. Step 2: Convert to fraction form
   81,114.56/121,502.34 = 65,233.70/x
3. Step 3: Cross multiply
   81,114.56x = 121,502.34 × 65,233.70
4. Step 4: Simplify right side
   81,114.56x = 7,926,047,196.86
5. Step 5: Solve for x
   x = 7,926,047,196.86/81,114.56
6. Step 6: Final answer
   x = 97,714.24