Finding the Fourth Proportional to 123,101.98, 169,880.81 and 66,513.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,101.98 : 169,880.81 = 66,513.34 : x
2. Step 2: Convert to fraction form
   123,101.98/169,880.81 = 66,513.34/x
3. Step 3: Cross multiply
   123,101.98x = 169,880.81 × 66,513.34
4. Step 4: Simplify right side
   123,101.98x = 11,299,340,075.01
5. Step 5: Solve for x
   x = 11,299,340,075.01/123,101.98
6. Step 6: Final answer
   x = 91,788.45