Finding the Fourth Proportional to 621,155.41, 931,734.56 and 188,876.84

Step by Step Solution

1. Step 1: Write the proportion equation
   621,155.41 : 931,734.56 = 188,876.84 : x
2. Step 2: Convert to fraction form
   621,155.41/931,734.56 = 188,876.84/x
3. Step 3: Cross multiply
   621,155.41x = 931,734.56 × 188,876.84
4. Step 4: Simplify right side
   621,155.41x = 175,983,079,411.59
5. Step 5: Solve for x
   x = 175,983,079,411.59/621,155.41
6. Step 6: Final answer
   x = 283,315.70