Finding the Fourth Proportional to 91,060.93, 136,591.07 and 42,369.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,060.93 : 136,591.07 = 42,369.40 : x
2. Step 2: Convert to fraction form
   91,060.93/136,591.07 = 42,369.40/x
3. Step 3: Cross multiply
   91,060.93x = 136,591.07 × 42,369.40
4. Step 4: Simplify right side
   91,060.93x = 5,787,280,998.30
5. Step 5: Solve for x
   x = 5,787,280,998.30/91,060.93
6. Step 6: Final answer
   x = 63,553.94