Finding the Fourth Proportional to 142,868.55, 214,287.78 and 58,637.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,868.55 : 214,287.78 = 58,637.61 : x
2. Step 2: Convert to fraction form
   142,868.55/214,287.78 = 58,637.61/x
3. Step 3: Cross multiply
   142,868.55x = 214,287.78 × 58,637.61
4. Step 4: Simplify right side
   142,868.55x = 12,565,323,271.41
5. Step 5: Solve for x
   x = 12,565,323,271.41/142,868.55
6. Step 6: Final answer
   x = 87,950.24