Finding the Fourth Proportional to 99,321.30, 149,039.55 and 36,998.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,321.30 : 149,039.55 = 36,998.10 : x
2. Step 2: Convert to fraction form
   99,321.30/149,039.55 = 36,998.10/x
3. Step 3: Cross multiply
   99,321.30x = 149,039.55 × 36,998.10
4. Step 4: Simplify right side
   99,321.30x = 5,514,180,174.86
5. Step 5: Solve for x
   x = 5,514,180,174.86/99,321.30
6. Step 6: Final answer
   x = 55,518.61