Finding the Fourth Proportional to 85,111.07, 117,199.71 and 83,222.87

Step by Step Solution

1. Step 1: Write the proportion equation
   85,111.07 : 117,199.71 = 83,222.87 : x
2. Step 2: Convert to fraction form
   85,111.07/117,199.71 = 83,222.87/x
3. Step 3: Cross multiply
   85,111.07x = 117,199.71 × 83,222.87
4. Step 4: Simplify right side
   85,111.07x = 9,753,695,643.37
5. Step 5: Solve for x
   x = 9,753,695,643.37/85,111.07
6. Step 6: Final answer
   x = 114,599.62