Finding the Fourth Proportional to 99,065.27, 136,710.07 and 56,624.71

Step by Step Solution

1. Step 1: Write the proportion equation
   99,065.27 : 136,710.07 = 56,624.71 : x
2. Step 2: Convert to fraction form
   99,065.27/136,710.07 = 56,624.71/x
3. Step 3: Cross multiply
   99,065.27x = 136,710.07 × 56,624.71
4. Step 4: Simplify right side
   99,065.27x = 7,741,168,067.83
5. Step 5: Solve for x
   x = 7,741,168,067.83/99,065.27
6. Step 6: Final answer
   x = 78,142.10