Finding the Fourth Proportional to 107,844.82, 148,783.40 and 72,058.20

Step by Step Solution

1. Step 1: Write the proportion equation
   107,844.82 : 148,783.40 = 72,058.20 : x
2. Step 2: Convert to fraction form
   107,844.82/148,783.40 = 72,058.20/x
3. Step 3: Cross multiply
   107,844.82x = 148,783.40 × 72,058.20
4. Step 4: Simplify right side
   107,844.82x = 10,721,063,993.88
5. Step 5: Solve for x
   x = 10,721,063,993.88/107,844.82
6. Step 6: Final answer
   x = 99,411.95