Finding the Fourth Proportional to 142,807.60, 214,168.22 and 42,941.28

Step by Step Solution

1. Step 1: Write the proportion equation
   142,807.60 : 214,168.22 = 42,941.28 : x
2. Step 2: Convert to fraction form
   142,807.60/214,168.22 = 42,941.28/x
3. Step 3: Cross multiply
   142,807.60x = 214,168.22 × 42,941.28
4. Step 4: Simplify right side
   142,807.60x = 9,196,657,502.12
5. Step 5: Solve for x
   x = 9,196,657,502.12/142,807.60
6. Step 6: Final answer
   x = 64,398.94