Finding the Fourth Proportional to 62,870.58, 93,815.82 and 57,281.58

Step by Step Solution

1. Step 1: Write the proportion equation
   62,870.58 : 93,815.82 = 57,281.58 : x
2. Step 2: Convert to fraction form
   62,870.58/93,815.82 = 57,281.58/x
3. Step 3: Cross multiply
   62,870.58x = 93,815.82 × 57,281.58
4. Step 4: Simplify right side
   62,870.58x = 5,373,918,398.60
5. Step 5: Solve for x
   x = 5,373,918,398.60/62,870.58
6. Step 6: Final answer
   x = 85,475.88