Finding the Fourth Proportional to 142,858.02, 214,245.72 and 48,077.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,858.02 : 214,245.72 = 48,077.76 : x
2. Step 2: Convert to fraction form
   142,858.02/214,245.72 = 48,077.76/x
3. Step 3: Cross multiply
   142,858.02x = 214,245.72 × 48,077.76
4. Step 4: Simplify right side
   142,858.02x = 10,300,454,307.19
5. Step 5: Solve for x
   x = 10,300,454,307.19/142,858.02
6. Step 6: Final answer
   x = 72,102.74