Finding the Fourth Proportional to 140,075.17, 209,020.25 and 124,978.51

Step by Step Solution

1. Step 1: Write the proportion equation
   140,075.17 : 209,020.25 = 124,978.51 : x
2. Step 2: Convert to fraction form
   140,075.17/209,020.25 = 124,978.51/x
3. Step 3: Cross multiply
   140,075.17x = 209,020.25 × 124,978.51
4. Step 4: Simplify right side
   140,075.17x = 26,123,038,393.74
5. Step 5: Solve for x
   x = 26,123,038,393.74/140,075.17
6. Step 6: Final answer
   x = 186,492.99