Finding the Fourth Proportional to 155,935.83, 215,191.60 and 84,315.84

Step by Step Solution

1. Step 1: Write the proportion equation
   155,935.83 : 215,191.60 = 84,315.84 : x
2. Step 2: Convert to fraction form
   155,935.83/215,191.60 = 84,315.84/x
3. Step 3: Cross multiply
   155,935.83x = 215,191.60 × 84,315.84
4. Step 4: Simplify right side
   155,935.83x = 18,144,059,971.46
5. Step 5: Solve for x
   x = 18,144,059,971.46/155,935.83
6. Step 6: Final answer
   x = 116,355.94