Finding the Fourth Proportional to 99,042.48, 136,676.48 and 56,016.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,042.48 : 136,676.48 = 56,016.27 : x
2. Step 2: Convert to fraction form
   99,042.48/136,676.48 = 56,016.27/x
3. Step 3: Cross multiply
   99,042.48x = 136,676.48 × 56,016.27
4. Step 4: Simplify right side
   99,042.48x = 7,656,106,326.25
5. Step 5: Solve for x
   x = 7,656,106,326.25/99,042.48
6. Step 6: Final answer
   x = 77,301.24