Finding the Fourth Proportional to 133,443.68, 184,274.72 and 85,780.04

Step by Step Solution

1. Step 1: Write the proportion equation
   133,443.68 : 184,274.72 = 85,780.04 : x
2. Step 2: Convert to fraction form
   133,443.68/184,274.72 = 85,780.04/x
3. Step 3: Cross multiply
   133,443.68x = 184,274.72 × 85,780.04
4. Step 4: Simplify right side
   133,443.68x = 15,807,092,852.59
5. Step 5: Solve for x
   x = 15,807,092,852.59/133,443.68
6. Step 6: Final answer
   x = 118,455.16