Finding the Fourth Proportional to 154,681.76, 213,061.55 and 109,280.94

Step by Step Solution

1. Step 1: Write the proportion equation
   154,681.76 : 213,061.55 = 109,280.94 : x
2. Step 2: Convert to fraction form
   154,681.76/213,061.55 = 109,280.94/x
3. Step 3: Cross multiply
   154,681.76x = 213,061.55 × 109,280.94
4. Step 4: Simplify right side
   154,681.76x = 23,283,565,116.47
5. Step 5: Solve for x
   x = 23,283,565,116.47/154,681.76
6. Step 6: Final answer
   x = 150,525.60