Finding the Fourth Proportional to 99,433.70, 149,131.10 and 37,091.78

Step by Step Solution

1. Step 1: Write the proportion equation
   99,433.70 : 149,131.10 = 37,091.78 : x
2. Step 2: Convert to fraction form
   99,433.70/149,131.10 = 37,091.78/x
3. Step 3: Cross multiply
   99,433.70x = 149,131.10 × 37,091.78
4. Step 4: Simplify right side
   99,433.70x = 5,531,537,299.43
5. Step 5: Solve for x
   x = 5,531,537,299.43/99,433.70
6. Step 6: Final answer
   x = 55,630.41