Finding the Fourth Proportional to 99,416.79, 149,068.71 and 67,865.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99,416.79 : 149,068.71 = 67,865.06 : x
2. Step 2: Convert to fraction form
   99,416.79/149,068.71 = 67,865.06/x
3. Step 3: Cross multiply
   99,416.79x = 149,068.71 × 67,865.06
4. Step 4: Simplify right side
   99,416.79x = 10,116,557,320.94
5. Step 5: Solve for x
   x = 10,116,557,320.94/99,416.79
6. Step 6: Final answer
   x = 101,759.04