Finding the Fourth Proportional to 109,845.78, 151,528.71 and 66,838.38

Step by Step Solution

1. Step 1: Write the proportion equation
   109,845.78 : 151,528.71 = 66,838.38 : x
2. Step 2: Convert to fraction form
   109,845.78/151,528.71 = 66,838.38/x
3. Step 3: Cross multiply
   109,845.78x = 151,528.71 × 66,838.38
4. Step 4: Simplify right side
   109,845.78x = 10,127,933,499.89
5. Step 5: Solve for x
   x = 10,127,933,499.89/109,845.78
6. Step 6: Final answer
   x = 92,201.39