Finding the Fourth Proportional to 99,086.04, 136,662.30 and 68,870.76

Step by Step Solution

1. Step 1: Write the proportion equation
   99,086.04 : 136,662.30 = 68,870.76 : x
2. Step 2: Convert to fraction form
   99,086.04/136,662.30 = 68,870.76/x
3. Step 3: Cross multiply
   99,086.04x = 136,662.30 × 68,870.76
4. Step 4: Simplify right side
   99,086.04x = 9,412,036,464.35
5. Step 5: Solve for x
   x = 9,412,036,464.35/99,086.04
6. Step 6: Final answer
   x = 94,988.52