Finding the Fourth Proportional to 71,164,788.72, 98,207,638.79 and 39,803,375.63

Step by Step Solution

1. Step 1: Write the proportion equation
   71,164,788.72 : 98,207,638.79 = 39,803,375.63 : x
2. Step 2: Convert to fraction form
   71,164,788.72/98,207,638.79 = 39,803,375.63/x
3. Step 3: Cross multiply
   71,164,788.72x = 98,207,638.79 × 39,803,375.63
4. Step 4: Simplify right side
   71,164,788.72x = 3,908,995,535,803,673.50
5. Step 5: Solve for x
   x = 3,908,995,535,803,673.50/71,164,788.72
6. Step 6: Final answer
   x = 54,928,787.20