Finding the Fourth Proportional to 99,870,101.31, 149,805,151.97 and 28,066,517.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,870,101.31 : 149,805,151.97 = 28,066,517.31 : x
2. Step 2: Convert to fraction form
   99,870,101.31/149,805,151.97 = 28,066,517.31/x
3. Step 3: Cross multiply
   99,870,101.31x = 149,805,151.97 × 28,066,517.31
4. Step 4: Simplify right side
   99,870,101.31x = 4,204,508,890,893,185.50
5. Step 5: Solve for x
   x = 4,204,508,890,893,185.50/99,870,101.31
6. Step 6: Final answer
   x = 42,099,775.97