Finding the Fourth Proportional to 146,066.48, 201,084.36 and 139,379.12

Step by Step Solution

1. Step 1: Write the proportion equation
   146,066.48 : 201,084.36 = 139,379.12 : x
2. Step 2: Convert to fraction form
   146,066.48/201,084.36 = 139,379.12/x
3. Step 3: Cross multiply
   146,066.48x = 201,084.36 × 139,379.12
4. Step 4: Simplify right side
   146,066.48x = 28,026,961,142.56
5. Step 5: Solve for x
   x = 28,026,961,142.56/146,066.48
6. Step 6: Final answer
   x = 191,878.12