Finding the Fourth Proportional to 541,100.81, 811,761.92 and 186,068.72

Step by Step Solution

1. Step 1: Write the proportion equation
   541,100.81 : 811,761.92 = 186,068.72 : x
2. Step 2: Convert to fraction form
   541,100.81/811,761.92 = 186,068.72/x
3. Step 3: Cross multiply
   541,100.81x = 811,761.92 × 186,068.72
4. Step 4: Simplify right side
   541,100.81x = 151,043,501,399.14
5. Step 5: Solve for x
   x = 151,043,501,399.14/541,100.81
6. Step 6: Final answer
   x = 279,141.15