Finding the Fourth Proportional to 133,978.56, 184,852.56 and 86,259.52

Step by Step Solution

1. Step 1: Write the proportion equation
   133,978.56 : 184,852.56 = 86,259.52 : x
2. Step 2: Convert to fraction form
   133,978.56/184,852.56 = 86,259.52/x
3. Step 3: Cross multiply
   133,978.56x = 184,852.56 × 86,259.52
4. Step 4: Simplify right side
   133,978.56x = 15,945,293,096.37
5. Step 5: Solve for x
   x = 15,945,293,096.37/133,978.56
6. Step 6: Final answer
   x = 119,013.77