Finding the Fourth Proportional to 101,715.72, 140,317.83 and 88,268.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,715.72 : 140,317.83 = 88,268.10 : x
2. Step 2: Convert to fraction form
   101,715.72/140,317.83 = 88,268.10/x
3. Step 3: Cross multiply
   101,715.72x = 140,317.83 × 88,268.10
4. Step 4: Simplify right side
   101,715.72x = 12,385,588,250.22
5. Step 5: Solve for x
   x = 12,385,588,250.22/101,715.72
6. Step 6: Final answer
   x = 121,766.71