Finding the Fourth Proportional to 181,541.62, 272,128.52 and 91,311.69

Step by Step Solution

1. Step 1: Write the proportion equation
   181,541.62 : 272,128.52 = 91,311.69 : x
2. Step 2: Convert to fraction form
   181,541.62/272,128.52 = 91,311.69/x
3. Step 3: Cross multiply
   181,541.62x = 272,128.52 × 91,311.69
4. Step 4: Simplify right side
   181,541.62x = 24,848,516,052.89
5. Step 5: Solve for x
   x = 24,848,516,052.89/181,541.62
6. Step 6: Final answer
   x = 136,875.04