Finding the Fourth Proportional to 99,387.32, 137,205.32 and 76,675.33

Step by Step Solution

1. Step 1: Write the proportion equation
   99,387.32 : 137,205.32 = 76,675.33 : x
2. Step 2: Convert to fraction form
   99,387.32/137,205.32 = 76,675.33/x
3. Step 3: Cross multiply
   99,387.32x = 137,205.32 × 76,675.33
4. Step 4: Simplify right side
   99,387.32x = 10,520,262,462.37
5. Step 5: Solve for x
   x = 10,520,262,462.37/99,387.32
6. Step 6: Final answer
   x = 105,851.15