Finding the Fourth Proportional to 385,436.88, 578,113.83 and 101,155.92

Step by Step Solution

1. Step 1: Write the proportion equation
   385,436.88 : 578,113.83 = 101,155.92 : x
2. Step 2: Convert to fraction form
   385,436.88/578,113.83 = 101,155.92/x
3. Step 3: Cross multiply
   385,436.88x = 578,113.83 × 101,155.92
4. Step 4: Simplify right side
   385,436.88x = 58,479,636,338.37
5. Step 5: Solve for x
   x = 58,479,636,338.37/385,436.88
6. Step 6: Final answer
   x = 151,722.99