Finding the Fourth Proportional to 108,738.47, 150,058.98 and 60,991.40

Step by Step Solution

1. Step 1: Write the proportion equation
   108,738.47 : 150,058.98 = 60,991.40 : x
2. Step 2: Convert to fraction form
   108,738.47/150,058.98 = 60,991.40/x
3. Step 3: Cross multiply
   108,738.47x = 150,058.98 × 60,991.40
4. Step 4: Simplify right side
   108,738.47x = 9,152,307,272.77
5. Step 5: Solve for x
   x = 9,152,307,272.77/108,738.47
6. Step 6: Final answer
   x = 84,168.07