Finding the Fourth Proportional to 72,824,971.05, 109,244,762.37 and 21,010,856.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,824,971.05 : 109,244,762.37 = 21,010,856.83 : x
2. Step 2: Convert to fraction form
   72,824,971.05/109,244,762.37 = 21,010,856.83/x
3. Step 3: Cross multiply
   72,824,971.05x = 109,244,762.37 × 21,010,856.83
4. Step 4: Simplify right side
   72,824,971.05x = 2,295,326,061,310,329.50
5. Step 5: Solve for x
   x = 2,295,326,061,310,329.50/72,824,971.05
6. Step 6: Final answer
   x = 31,518,393.05