Finding the Fourth Proportional to 107,690.94, 161,536.50 and 28,805.10

Step by Step Solution

1. Step 1: Write the proportion equation
   107,690.94 : 161,536.50 = 28,805.10 : x
2. Step 2: Convert to fraction form
   107,690.94/161,536.50 = 28,805.10/x
3. Step 3: Cross multiply
   107,690.94x = 161,536.50 × 28,805.10
4. Step 4: Simplify right side
   107,690.94x = 4,653,075,036.15
5. Step 5: Solve for x
   x = 4,653,075,036.15/107,690.94
6. Step 6: Final answer
   x = 43,207.67