Finding the Fourth Proportional to 138,767.50, 191,499.15 and 75,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   138,767.50 : 191,499.15 = 75,105.82 : x
2. Step 2: Convert to fraction form
   138,767.50/191,499.15 = 75,105.82/x
3. Step 3: Cross multiply
   138,767.50x = 191,499.15 × 75,105.82
4. Step 4: Simplify right side
   138,767.50x = 14,382,700,690.05
5. Step 5: Solve for x
   x = 14,382,700,690.05/138,767.50
6. Step 6: Final answer
   x = 103,646.03