Finding the Fourth Proportional to 102,048.05, 140,895.03 and 91,259.46

Step by Step Solution

1. Step 1: Write the proportion equation
   102,048.05 : 140,895.03 = 91,259.46 : x
2. Step 2: Convert to fraction form
   102,048.05/140,895.03 = 91,259.46/x
3. Step 3: Cross multiply
   102,048.05x = 140,895.03 × 91,259.46
4. Step 4: Simplify right side
   102,048.05x = 12,858,004,354.48
5. Step 5: Solve for x
   x = 12,858,004,354.48/102,048.05
6. Step 6: Final answer
   x = 125,999.52