Finding the Fourth Proportional to 91,255.82, 136,884.06 and 28,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,255.82 : 136,884.06 = 28,075.50 : x
2. Step 2: Convert to fraction form
   91,255.82/136,884.06 = 28,075.50/x
3. Step 3: Cross multiply
   91,255.82x = 136,884.06 × 28,075.50
4. Step 4: Simplify right side
   91,255.82x = 3,843,088,426.53
5. Step 5: Solve for x
   x = 3,843,088,426.53/91,255.82
6. Step 6: Final answer
   x = 42,113.35