Finding the Fourth Proportional to 90,832.75, 136,271.01 and 28,503.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,832.75 : 136,271.01 = 28,503.25 : x
2. Step 2: Convert to fraction form
   90,832.75/136,271.01 = 28,503.25/x
3. Step 3: Cross multiply
   90,832.75x = 136,271.01 × 28,503.25
4. Step 4: Simplify right side
   90,832.75x = 3,884,166,665.78
5. Step 5: Solve for x
   x = 3,884,166,665.78/90,832.75
6. Step 6: Final answer
   x = 42,761.74