Finding the Fourth Proportional to 99,453.76, 149,128.80 and 37,072.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,453.76 : 149,128.80 = 37,072.96 : x
2. Step 2: Convert to fraction form
   99,453.76/149,128.80 = 37,072.96/x
3. Step 3: Cross multiply
   99,453.76x = 149,128.80 × 37,072.96
4. Step 4: Simplify right side
   99,453.76x = 5,528,646,037.25
5. Step 5: Solve for x
   x = 5,528,646,037.25/99,453.76
6. Step 6: Final answer
   x = 55,590.12