Finding the Fourth Proportional to 149,061.58, 205,686.26 and 100,768.55

Step by Step Solution

1. Step 1: Write the proportion equation
   149,061.58 : 205,686.26 = 100,768.55 : x
2. Step 2: Convert to fraction form
   149,061.58/205,686.26 = 100,768.55/x
3. Step 3: Cross multiply
   149,061.58x = 205,686.26 × 100,768.55
4. Step 4: Simplify right side
   149,061.58x = 20,726,706,941.26
5. Step 5: Solve for x
   x = 20,726,706,941.26/149,061.58
6. Step 6: Final answer
   x = 139,047.95