Finding the Fourth Proportional to 152,124.21, 209,927.45 and 84,139.49

Step by Step Solution

1. Step 1: Write the proportion equation
   152,124.21 : 209,927.45 = 84,139.49 : x
2. Step 2: Convert to fraction form
   152,124.21/209,927.45 = 84,139.49/x
3. Step 3: Cross multiply
   152,124.21x = 209,927.45 × 84,139.49
4. Step 4: Simplify right side
   152,124.21x = 17,663,189,315.17
5. Step 5: Solve for x
   x = 17,663,189,315.17/152,124.21
6. Step 6: Final answer
   x = 116,110.31