Finding the Fourth Proportional to 113,949.84, 157,146.72 and 87,042.32

Step by Step Solution

1. Step 1: Write the proportion equation
   113,949.84 : 157,146.72 = 87,042.32 : x
2. Step 2: Convert to fraction form
   113,949.84/157,146.72 = 87,042.32/x
3. Step 3: Cross multiply
   113,949.84x = 157,146.72 × 87,042.32
4. Step 4: Simplify right side
   113,949.84x = 13,678,415,089.19
5. Step 5: Solve for x
   x = 13,678,415,089.19/113,949.84
6. Step 6: Final answer
   x = 120,038.91