Finding the Fourth Proportional to 99,709.04, 149,531.20 and 33,131.29

Step by Step Solution

1. Step 1: Write the proportion equation
   99,709.04 : 149,531.20 = 33,131.29 : x
2. Step 2: Convert to fraction form
   99,709.04/149,531.20 = 33,131.29/x
3. Step 3: Cross multiply
   99,709.04x = 149,531.20 × 33,131.29
4. Step 4: Simplify right side
   99,709.04x = 4,954,161,094.59
5. Step 5: Solve for x
   x = 4,954,161,094.59/99,709.04
6. Step 6: Final answer
   x = 49,686.18