Finding the Fourth Proportional to 247,139.74, 370,738.41 and 89,442.46

Step by Step Solution

1. Step 1: Write the proportion equation
   247,139.74 : 370,738.41 = 89,442.46 : x
2. Step 2: Convert to fraction form
   247,139.74/370,738.41 = 89,442.46/x
3. Step 3: Cross multiply
   247,139.74x = 370,738.41 × 89,442.46
4. Step 4: Simplify right side
   247,139.74x = 33,159,755,406.89
5. Step 5: Solve for x
   x = 33,159,755,406.89/247,139.74
6. Step 6: Final answer
   x = 134,174.11