Finding the Fourth Proportional to 74,784.28, 103,197 and 42,083.47

Step by Step Solution

1. Step 1: Write the proportion equation
   74,784.28 : 103,197 = 42,083.47 : x
2. Step 2: Convert to fraction form
   74,784.28/103,197 = 42,083.47/x
3. Step 3: Cross multiply
   74,784.28x = 103,197 × 42,083.47
4. Step 4: Simplify right side
   74,784.28x = 4,342,887,853.59
5. Step 5: Solve for x
   x = 4,342,887,853.59/74,784.28
6. Step 6: Final answer
   x = 58,072.20