Finding the Fourth Proportional to 134,499.89, 185,610.40 and 77,141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   134,499.89 : 185,610.40 = 77,141.42 : x
2. Step 2: Convert to fraction form
   134,499.89/185,610.40 = 77,141.42/x
3. Step 3: Cross multiply
   134,499.89x = 185,610.40 × 77,141.42
4. Step 4: Simplify right side
   134,499.89x = 14,318,249,822.77
5. Step 5: Solve for x
   x = 14,318,249,822.77/134,499.89
6. Step 6: Final answer
   x = 106,455.48