Finding the Fourth Proportional to 139,721,080.86, 208,599,211.28 and 106,759,141.74

Step by Step Solution

1. Step 1: Write the proportion equation
   139,721,080.86 : 208,599,211.28 = 106,759,141.74 : x
2. Step 2: Convert to fraction form
   139,721,080.86/208,599,211.28 = 106,759,141.74/x
3. Step 3: Cross multiply
   139,721,080.86x = 208,599,211.28 × 106,759,141.74
4. Step 4: Simplify right side
   139,721,080.86x = 22,269,872,763,359,932
5. Step 5: Solve for x
   x = 22,269,872,763,359,932/139,721,080.86
6. Step 6: Final answer
   x = 159,388,065.32