Finding the Fourth Proportional to 91,075.50, 136,613.34 and 28,746

Step by Step Solution

1. Step 1: Write the proportion equation
   91,075.50 : 136,613.34 = 28,746 : x
2. Step 2: Convert to fraction form
   91,075.50/136,613.34 = 28,746/x
3. Step 3: Cross multiply
   91,075.50x = 136,613.34 × 28,746
4. Step 4: Simplify right side
   91,075.50x = 3,927,087,071.64
5. Step 5: Solve for x
   x = 3,927,087,071.64/91,075.50
6. Step 6: Final answer
   x = 43,119.03