Finding the Fourth Proportional to 89,393.80, 134,113.28 and 42,000.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,393.80 : 134,113.28 = 42,000.10 : x
2. Step 2: Convert to fraction form
   89,393.80/134,113.28 = 42,000.10/x
3. Step 3: Cross multiply
   89,393.80x = 134,113.28 × 42,000.10
4. Step 4: Simplify right side
   89,393.80x = 5,632,771,171.33
5. Step 5: Solve for x
   x = 5,632,771,171.33/89,393.80
6. Step 6: Final answer
   x = 63,010.76