Finding the Fourth Proportional to 70,382,456.48, 105,590,208.72 and 21,857,805.92

Step by Step Solution

1. Step 1: Write the proportion equation
   70,382,456.48 : 105,590,208.72 = 21,857,805.92 : x
2. Step 2: Convert to fraction form
   70,382,456.48/105,590,208.72 = 21,857,805.92/x
3. Step 3: Cross multiply
   70,382,456.48x = 105,590,208.72 × 21,857,805.92
4. Step 4: Simplify right side
   70,382,456.48x = 2,307,970,289,254,052
5. Step 5: Solve for x
   x = 2,307,970,289,254,052/70,382,456.48
6. Step 6: Final answer
   x = 32,791,840.53