Finding the Fourth Proportional to 152,123.94, 209,926.62 and 84,143.61

Step by Step Solution

1. Step 1: Write the proportion equation
   152,123.94 : 209,926.62 = 84,143.61 : x
2. Step 2: Convert to fraction form
   152,123.94/209,926.62 = 84,143.61/x
3. Step 3: Cross multiply
   152,123.94x = 209,926.62 × 84,143.61
4. Step 4: Simplify right side
   152,123.94x = 17,663,983,641.90
5. Step 5: Solve for x
   x = 17,663,983,641.90/152,123.94
6. Step 6: Final answer
   x = 116,115.74