Finding the Fourth Proportional to 99,351.31, 149,039.27 and 31,887.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,351.31 : 149,039.27 = 31,887.83 : x
2. Step 2: Convert to fraction form
   99,351.31/149,039.27 = 31,887.83/x
3. Step 3: Cross multiply
   99,351.31x = 149,039.27 × 31,887.83
4. Step 4: Simplify right side
   99,351.31x = 4,752,538,309.79
5. Step 5: Solve for x
   x = 4,752,538,309.79/99,351.31
6. Step 6: Final answer
   x = 47,835.69