Finding the Fourth Proportional to 538,164,020.10, 753,939,811.50 and 538,164,020.10

Step by Step Solution

1. Step 1: Write the proportion equation
   538,164,020.10 : 753,939,811.50 = 538,164,020.10 : x
2. Step 2: Convert to fraction form
   538,164,020.10/753,939,811.50 = 538,164,020.10/x
3. Step 3: Cross multiply
   538,164,020.10x = 753,939,811.50 × 538,164,020.10
4. Step 4: Simplify right side
   538,164,020.10x = 405,743,279,870,276,224
5. Step 5: Solve for x
   x = 405,743,279,870,276,224/538,164,020.10
6. Step 6: Final answer
   x = 753,939,811.50