Finding the Fourth Proportional to 136,885.39, 188,899.83 and 76,456.91

Step by Step Solution

1. Step 1: Write the proportion equation
   136,885.39 : 188,899.83 = 76,456.91 : x
2. Step 2: Convert to fraction form
   136,885.39/188,899.83 = 76,456.91/x
3. Step 3: Cross multiply
   136,885.39x = 188,899.83 × 76,456.91
4. Step 4: Simplify right side
   136,885.39x = 14,442,696,711.01
5. Step 5: Solve for x
   x = 14,442,696,711.01/136,885.39
6. Step 6: Final answer
   x = 105,509.41