Finding the Fourth Proportional to 52,820,470.78, 72,890,843.20 and 30,492,703.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,820,470.78 : 72,890,843.20 = 30,492,703.28 : x
2. Step 2: Convert to fraction form
   52,820,470.78/72,890,843.20 = 30,492,703.28/x
3. Step 3: Cross multiply
   52,820,470.78x = 72,890,843.20 × 30,492,703.28
4. Step 4: Simplify right side
   52,820,470.78x = 2,222,638,853,394,111.50
5. Step 5: Solve for x
   x = 2,222,638,853,394,111.50/52,820,470.78
6. Step 6: Final answer
   x = 42,079,118.58