Finding the Fourth Proportional to 99,816.62, 137,582.82 and 70,754.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,816.62 : 137,582.82 = 70,754.72 : x
2. Step 2: Convert to fraction form
   99,816.62/137,582.82 = 70,754.72/x
3. Step 3: Cross multiply
   99,816.62x = 137,582.82 × 70,754.72
4. Step 4: Simplify right side
   99,816.62x = 9,734,633,218.00
5. Step 5: Solve for x
   x = 9,734,633,218.00/99,816.62
6. Step 6: Final answer
   x = 97,525.18