Finding the Fourth Proportional to 102,111.80, 153,167.79 and 31,996.58

Step by Step Solution

1. Step 1: Write the proportion equation
   102,111.80 : 153,167.79 = 31,996.58 : x
2. Step 2: Convert to fraction form
   102,111.80/153,167.79 = 31,996.58/x
3. Step 3: Cross multiply
   102,111.80x = 153,167.79 × 31,996.58
4. Step 4: Simplify right side
   102,111.80x = 4,900,845,446.16
5. Step 5: Solve for x
   x = 4,900,845,446.16/102,111.80
6. Step 6: Final answer
   x = 47,994.90