Finding the Fourth Proportional to 99,472.86, 149,204.43 and 37,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,472.86 : 149,204.43 = 37,138.50 : x
2. Step 2: Convert to fraction form
   99,472.86/149,204.43 = 37,138.50/x
3. Step 3: Cross multiply
   99,472.86x = 149,204.43 × 37,138.50
4. Step 4: Simplify right side
   99,472.86x = 5,541,228,723.56
5. Step 5: Solve for x
   x = 5,541,228,723.56/99,472.86
6. Step 6: Final answer
   x = 55,705.94