Finding the Fourth Proportional to 113,590.37, 156,662.69 and 99,948.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,590.37 : 156,662.69 = 99,948.96 : x
2. Step 2: Convert to fraction form
   113,590.37/156,662.69 = 99,948.96/x
3. Step 3: Cross multiply
   113,590.37x = 156,662.69 × 99,948.96
4. Step 4: Simplify right side
   113,590.37x = 15,658,273,186.17
5. Step 5: Solve for x
   x = 15,658,273,186.17/113,590.37
6. Step 6: Final answer
   x = 137,848.59