Finding the Fourth Proportional to 90,109.27, 135,075.63 and 50,147.32

Step by Step Solution

1. Step 1: Write the proportion equation
   90,109.27 : 135,075.63 = 50,147.32 : x
2. Step 2: Convert to fraction form
   90,109.27/135,075.63 = 50,147.32/x
3. Step 3: Cross multiply
   90,109.27x = 135,075.63 × 50,147.32
4. Step 4: Simplify right side
   90,109.27x = 6,773,680,841.81
5. Step 5: Solve for x
   x = 6,773,680,841.81/90,109.27
6. Step 6: Final answer
   x = 75,171.85