Finding the Fourth Proportional to 72,638,501.24, 100,242,243.82 and 39,598,769.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,638,501.24 : 100,242,243.82 = 39,598,769.72 : x
2. Step 2: Convert to fraction form
   72,638,501.24/100,242,243.82 = 39,598,769.72/x
3. Step 3: Cross multiply
   72,638,501.24x = 100,242,243.82 × 39,598,769.72
4. Step 4: Simplify right side
   72,638,501.24x = 3,969,469,529,244,272.50
5. Step 5: Solve for x
   x = 3,969,469,529,244,272.50/72,638,501.24
6. Step 6: Final answer
   x = 54,646,908.48