Finding the Fourth Proportional to 142,887.42, 214,315.95 and 58,656.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,887.42 : 214,315.95 = 58,656.42 : x
2. Step 2: Convert to fraction form
   142,887.42/214,315.95 = 58,656.42/x
3. Step 3: Cross multiply
   142,887.42x = 214,315.95 × 58,656.42
4. Step 4: Simplify right side
   142,887.42x = 12,571,006,375.90
5. Step 5: Solve for x
   x = 12,571,006,375.90/142,887.42
6. Step 6: Final answer
   x = 87,978.40