Finding the Fourth Proportional to 62,438.52, 86,236.12 and 41,985

Step by Step Solution

1. Step 1: Write the proportion equation
   62,438.52 : 86,236.12 = 41,985 : x
2. Step 2: Convert to fraction form
   62,438.52/86,236.12 = 41,985/x
3. Step 3: Cross multiply
   62,438.52x = 86,236.12 × 41,985
4. Step 4: Simplify right side
   62,438.52x = 3,620,623,498.20
5. Step 5: Solve for x
   x = 3,620,623,498.20/62,438.52
6. Step 6: Final answer
   x = 57,987.02