Finding the Fourth Proportional to 99,895.94, 137,765.01 and 78,095.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99,895.94 : 137,765.01 = 78,095.06 : x
2. Step 2: Convert to fraction form
   99,895.94/137,765.01 = 78,095.06/x
3. Step 3: Cross multiply
   99,895.94x = 137,765.01 × 78,095.06
4. Step 4: Simplify right side
   99,895.94x = 10,758,766,721.85
5. Step 5: Solve for x
   x = 10,758,766,721.85/99,895.94
6. Step 6: Final answer
   x = 107,699.74