Finding the Fourth Proportional to 99,300.42, 149,056.74 and 40,174.74

Step by Step Solution

1. Step 1: Write the proportion equation
   99,300.42 : 149,056.74 = 40,174.74 : x
2. Step 2: Convert to fraction form
   99,300.42/149,056.74 = 40,174.74/x
3. Step 3: Cross multiply
   99,300.42x = 149,056.74 × 40,174.74
4. Step 4: Simplify right side
   99,300.42x = 5,988,315,774.75
5. Step 5: Solve for x
   x = 5,988,315,774.75/99,300.42
6. Step 6: Final answer
   x = 60,305.04