Finding the Fourth Proportional to 123,075.30, 169,886.08 and 72,104.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,075.30 : 169,886.08 = 72,104.42 : x
2. Step 2: Convert to fraction form
   123,075.30/169,886.08 = 72,104.42/x
3. Step 3: Cross multiply
   123,075.30x = 169,886.08 × 72,104.42
4. Step 4: Simplify right side
   123,075.30x = 12,249,537,264.47
5. Step 5: Solve for x
   x = 12,249,537,264.47/123,075.30
6. Step 6: Final answer
   x = 99,528.80