Finding the Fourth Proportional to 120,902.31, 181,283.12 and 88,900.52

Step by Step Solution

1. Step 1: Write the proportion equation
   120,902.31 : 181,283.12 = 88,900.52 : x
2. Step 2: Convert to fraction form
   120,902.31/181,283.12 = 88,900.52/x
3. Step 3: Cross multiply
   120,902.31x = 181,283.12 × 88,900.52
4. Step 4: Simplify right side
   120,902.31x = 16,116,164,605.34
5. Step 5: Solve for x
   x = 16,116,164,605.34/120,902.31
6. Step 6: Final answer
   x = 133,299.06