Finding the Fourth Proportional to 131,856.64, 181,785.96 and 109,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   131,856.64 : 181,785.96 = 109,111.84 : x
2. Step 2: Convert to fraction form
   131,856.64/181,785.96 = 109,111.84/x
3. Step 3: Cross multiply
   131,856.64x = 181,785.96 × 109,111.84
4. Step 4: Simplify right side
   131,856.64x = 19,835,000,581.77
5. Step 5: Solve for x
   x = 19,835,000,581.77/131,856.64
6. Step 6: Final answer
   x = 150,428.53