Finding the Fourth Proportional to 133,061.67, 183,505.23 and 85,305.69

Step by Step Solution

1. Step 1: Write the proportion equation
   133,061.67 : 183,505.23 = 85,305.69 : x
2. Step 2: Convert to fraction form
   133,061.67/183,505.23 = 85,305.69/x
3. Step 3: Cross multiply
   133,061.67x = 183,505.23 × 85,305.69
4. Step 4: Simplify right side
   133,061.67x = 15,654,040,263.76
5. Step 5: Solve for x
   x = 15,654,040,263.76/133,061.67
6. Step 6: Final answer
   x = 117,645.00