Finding the Fourth Proportional to 105,090.33, 145,027.85 and 59,774.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,090.33 : 145,027.85 = 59,774.83 : x
2. Step 2: Convert to fraction form
   105,090.33/145,027.85 = 59,774.83/x
3. Step 3: Cross multiply
   105,090.33x = 145,027.85 × 59,774.83
4. Step 4: Simplify right side
   105,090.33x = 8,669,015,079.02
5. Step 5: Solve for x
   x = 8,669,015,079.02/105,090.33
6. Step 6: Final answer
   x = 82,491.08