Finding the Fourth Proportional to 152,113.51, 209,915.31 and 84,135.46

Step by Step Solution

1. Step 1: Write the proportion equation
   152,113.51 : 209,915.31 = 84,135.46 : x
2. Step 2: Convert to fraction form
   152,113.51/209,915.31 = 84,135.46/x
3. Step 3: Cross multiply
   152,113.51x = 209,915.31 × 84,135.46
4. Step 4: Simplify right side
   152,113.51x = 17,661,321,167.89
5. Step 5: Solve for x
   x = 17,661,321,167.89/152,113.51
6. Step 6: Final answer
   x = 116,106.20