Finding the Fourth Proportional to 99,066.56, 136,709.46 and 54,862.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,066.56 : 136,709.46 = 54,862.94 : x
2. Step 2: Convert to fraction form
   99,066.56/136,709.46 = 54,862.94/x
3. Step 3: Cross multiply
   99,066.56x = 136,709.46 × 54,862.94
4. Step 4: Simplify right side
   99,066.56x = 7,500,282,901.41
5. Step 5: Solve for x
   x = 7,500,282,901.41/99,066.56
6. Step 6: Final answer
   x = 75,709.53