Finding the Fourth Proportional to 144,877.56, 199,972.73 and 87,507.76

Step by Step Solution

1. Step 1: Write the proportion equation
   144,877.56 : 199,972.73 = 87,507.76 : x
2. Step 2: Convert to fraction form
   144,877.56/199,972.73 = 87,507.76/x
3. Step 3: Cross multiply
   144,877.56x = 199,972.73 × 87,507.76
4. Step 4: Simplify right side
   144,877.56x = 17,499,165,663.38
5. Step 5: Solve for x
   x = 17,499,165,663.38/144,877.56
6. Step 6: Final answer
   x = 120,785.89