Finding the Fourth Proportional to 152,124.95, 209,930.64 and 84,136.59

Step by Step Solution

1. Step 1: Write the proportion equation
   152,124.95 : 209,930.64 = 84,136.59 : x
2. Step 2: Convert to fraction form
   152,124.95/209,930.64 = 84,136.59/x
3. Step 3: Cross multiply
   152,124.95x = 209,930.64 × 84,136.59
4. Step 4: Simplify right side
   152,124.95x = 17,662,847,870.61
5. Step 5: Solve for x
   x = 17,662,847,870.61/152,124.95
6. Step 6: Final answer
   x = 116,107.50