Finding the Fourth Proportional to 48,066.32, 65,978.50 and 42,642.56

Step by Step Solution

1. Step 1: Write the proportion equation
   48,066.32 : 65,978.50 = 42,642.56 : x
2. Step 2: Convert to fraction form
   48,066.32/65,978.50 = 42,642.56/x
3. Step 3: Cross multiply
   48,066.32x = 65,978.50 × 42,642.56
4. Step 4: Simplify right side
   48,066.32x = 2,813,492,144.96
5. Step 5: Solve for x
   x = 2,813,492,144.96/48,066.32
6. Step 6: Final answer
   x = 58,533.55