Finding the Fourth Proportional to 13,357,639,071.52, 18,435,242,525.52 and 8,077,279,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,357,639,071.52 : 18,435,242,525.52 = 8,077,279,086.88 : x
2. Step 2: Convert to fraction form
   13,357,639,071.52/18,435,242,525.52 = 8,077,279,086.88/x
3. Step 3: Cross multiply
   13,357,639,071.52x = 18,435,242,525.52 × 8,077,279,086.88
4. Step 4: Simplify right side
   13,357,639,071.52x = 148,906,598,912,943,521,792
5. Step 5: Solve for x
   x = 148,906,598,912,943,521,792/13,357,639,071.52
6. Step 6: Final answer
   x = 11,147,673,485.99