Finding the Fourth Proportional to 186,088.78, 256,807.83 and 101,211.31

Step by Step Solution

1. Step 1: Write the proportion equation
   186,088.78 : 256,807.83 = 101,211.31 : x
2. Step 2: Convert to fraction form
   186,088.78/256,807.83 = 101,211.31/x
3. Step 3: Cross multiply
   186,088.78x = 256,807.83 × 101,211.31
4. Step 4: Simplify right side
   186,088.78x = 25,991,856,892.56
5. Step 5: Solve for x
   x = 25,991,856,892.56/186,088.78
6. Step 6: Final answer
   x = 139,674.50