Finding the Fourth Proportional to 116,012, 160,173.78 and 89,106.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,012 : 160,173.78 = 89,106.50 : x
2. Step 2: Convert to fraction form
   116,012/160,173.78 = 89,106.50/x
3. Step 3: Cross multiply
   116,012x = 160,173.78 × 89,106.50
4. Step 4: Simplify right side
   116,012x = 14,272,524,927.57
5. Step 5: Solve for x
   x = 14,272,524,927.57/116,012
6. Step 6: Final answer
   x = 123,026.28