Finding the Fourth Proportional to 109,511.38, 164,266.61 and 42,904.47

Step by Step Solution

1. Step 1: Write the proportion equation
   109,511.38 : 164,266.61 = 42,904.47 : x
2. Step 2: Convert to fraction form
   109,511.38/164,266.61 = 42,904.47/x
3. Step 3: Cross multiply
   109,511.38x = 164,266.61 × 42,904.47
4. Step 4: Simplify right side
   109,511.38x = 7,047,771,840.75
5. Step 5: Solve for x
   x = 7,047,771,840.75/109,511.38
6. Step 6: Final answer
   x = 64,356.52