Finding the Fourth Proportional to 66,089.18, 91,180.86 and 42,229.82

Step by Step Solution

1. Step 1: Write the proportion equation
   66,089.18 : 91,180.86 = 42,229.82 : x
2. Step 2: Convert to fraction form
   66,089.18/91,180.86 = 42,229.82/x
3. Step 3: Cross multiply
   66,089.18x = 91,180.86 × 42,229.82
4. Step 4: Simplify right side
   66,089.18x = 3,850,551,305.25
5. Step 5: Solve for x
   x = 3,850,551,305.25/66,089.18
6. Step 6: Final answer
   x = 58,262.96