Finding the Fourth Proportional to 74,042.27, 102,072.05 and 52,784.63

Step by Step Solution

1. Step 1: Write the proportion equation
   74,042.27 : 102,072.05 = 52,784.63 : x
2. Step 2: Convert to fraction form
   74,042.27/102,072.05 = 52,784.63/x
3. Step 3: Cross multiply
   74,042.27x = 102,072.05 × 52,784.63
4. Step 4: Simplify right side
   74,042.27x = 5,387,835,392.59
5. Step 5: Solve for x
   x = 5,387,835,392.59/74,042.27
6. Step 6: Final answer
   x = 72,767.02