Finding the Fourth Proportional to 142,938.02, 214,255.76 and 48,077.90

Step by Step Solution

1. Step 1: Write the proportion equation
   142,938.02 : 214,255.76 = 48,077.90 : x
2. Step 2: Convert to fraction form
   142,938.02/214,255.76 = 48,077.90/x
3. Step 3: Cross multiply
   142,938.02x = 214,255.76 × 48,077.90
4. Step 4: Simplify right side
   142,938.02x = 10,300,967,003.70
5. Step 5: Solve for x
   x = 10,300,967,003.70/142,938.02
6. Step 6: Final answer
   x = 72,065.97