Finding the Fourth Proportional to 154,775.96, 213,636.18 and 101,069.31

Step by Step Solution

1. Step 1: Write the proportion equation
   154,775.96 : 213,636.18 = 101,069.31 : x
2. Step 2: Convert to fraction form
   154,775.96/213,636.18 = 101,069.31/x
3. Step 3: Cross multiply
   154,775.96x = 213,636.18 × 101,069.31
4. Step 4: Simplify right side
   154,775.96x = 21,592,060,798.29
5. Step 5: Solve for x
   x = 21,592,060,798.29/154,775.96
6. Step 6: Final answer
   x = 139,505.27