Finding the Fourth Proportional to 152,168.34, 209,983.10 and 91,758.54

Step by Step Solution

1. Step 1: Write the proportion equation
   152,168.34 : 209,983.10 = 91,758.54 : x
2. Step 2: Convert to fraction form
   152,168.34/209,983.10 = 91,758.54/x
3. Step 3: Cross multiply
   152,168.34x = 209,983.10 × 91,758.54
4. Step 4: Simplify right side
   152,168.34x = 19,267,742,680.67
5. Step 5: Solve for x
   x = 19,267,742,680.67/152,168.34
6. Step 6: Final answer
   x = 126,621.23