Finding the Fourth Proportional to 102,111.74, 140,893.38 and 59,662.07

Step by Step Solution

1. Step 1: Write the proportion equation
   102,111.74 : 140,893.38 = 59,662.07 : x
2. Step 2: Convert to fraction form
   102,111.74/140,893.38 = 59,662.07/x
3. Step 3: Cross multiply
   102,111.74x = 140,893.38 × 59,662.07
4. Step 4: Simplify right side
   102,111.74x = 8,405,990,700.10
5. Step 5: Solve for x
   x = 8,405,990,700.10/102,111.74
6. Step 6: Final answer
   x = 82,321.49