Finding the Fourth Proportional to 62,885, 86,760.12 and 42,706.88

Step by Step Solution

1. Step 1: Write the proportion equation
   62,885 : 86,760.12 = 42,706.88 : x
2. Step 2: Convert to fraction form
   62,885/86,760.12 = 42,706.88/x
3. Step 3: Cross multiply
   62,885x = 86,760.12 × 42,706.88
4. Step 4: Simplify right side
   62,885x = 3,705,254,033.63
5. Step 5: Solve for x
   x = 3,705,254,033.63/62,885
6. Step 6: Final answer
   x = 58,921.11