Finding the Fourth Proportional to 91,275.63, 136,926.42 and 28,101.03

Step by Step Solution

1. Step 1: Write the proportion equation
   91,275.63 : 136,926.42 = 28,101.03 : x
2. Step 2: Convert to fraction form
   91,275.63/136,926.42 = 28,101.03/x
3. Step 3: Cross multiply
   91,275.63x = 136,926.42 × 28,101.03
4. Step 4: Simplify right side
   91,275.63x = 3,847,772,751.58
5. Step 5: Solve for x
   x = 3,847,772,751.58/91,275.63
6. Step 6: Final answer
   x = 42,155.53