Finding the Fourth Proportional to 279,132,443.84, 418,761,112.84 and 85,059,048

Step by Step Solution

1. Step 1: Write the proportion equation
   279,132,443.84 : 418,761,112.84 = 85,059,048 : x
2. Step 2: Convert to fraction form
   279,132,443.84/418,761,112.84 = 85,059,048/x
3. Step 3: Cross multiply
   279,132,443.84x = 418,761,112.84 × 85,059,048
4. Step 4: Simplify right side
   279,132,443.84x = 35,619,421,597,590,976
5. Step 5: Solve for x
   x = 35,619,421,597,590,976/279,132,443.84
6. Step 6: Final answer
   x = 127,607,601.28