Finding the Fourth Proportional to 77,795.39, 107,131.75 and 67,581.77

Step by Step Solution

1. Step 1: Write the proportion equation
   77,795.39 : 107,131.75 = 67,581.77 : x
2. Step 2: Convert to fraction form
   77,795.39/107,131.75 = 67,581.77/x
3. Step 3: Cross multiply
   77,795.39x = 107,131.75 × 67,581.77
4. Step 4: Simplify right side
   77,795.39x = 7,240,152,583.58
5. Step 5: Solve for x
   x = 7,240,152,583.58/77,795.39
6. Step 6: Final answer
   x = 93,066.60