Finding the Fourth Proportional to 142,868.79, 214,288.15 and 58,637.86

Step by Step Solution

1. Step 1: Write the proportion equation
   142,868.79 : 214,288.15 = 58,637.86 : x
2. Step 2: Convert to fraction form
   142,868.79/214,288.15 = 58,637.86/x
3. Step 3: Cross multiply
   142,868.79x = 214,288.15 × 58,637.86
4. Step 4: Simplify right side
   142,868.79x = 12,565,398,539.36
5. Step 5: Solve for x
   x = 12,565,398,539.36/142,868.79
6. Step 6: Final answer
   x = 87,950.62