Finding the Fourth Proportional to 98,050.32, 147,131.37 and 81,609.48

Step by Step Solution

1. Step 1: Write the proportion equation
   98,050.32 : 147,131.37 = 81,609.48 : x
2. Step 2: Convert to fraction form
   98,050.32/147,131.37 = 81,609.48/x
3. Step 3: Cross multiply
   98,050.32x = 147,131.37 × 81,609.48
4. Step 4: Simplify right side
   98,050.32x = 12,007,314,597.39
5. Step 5: Solve for x
   x = 12,007,314,597.39/98,050.32
6. Step 6: Final answer
   x = 122,460.74