Finding the Fourth Proportional to 199,691,836.25, 275,569,445.88 and 111,586,557.89

Step by Step Solution

1. Step 1: Write the proportion equation
   199,691,836.25 : 275,569,445.88 = 111,586,557.89 : x
2. Step 2: Convert to fraction form
   199,691,836.25/275,569,445.88 = 111,586,557.89/x
3. Step 3: Cross multiply
   199,691,836.25x = 275,569,445.88 × 111,586,557.89
4. Step 4: Simplify right side
   199,691,836.25x = 30,749,845,926,092,764
5. Step 5: Solve for x
   x = 30,749,845,926,092,764/199,691,836.25
6. Step 6: Final answer
   x = 153,986,494.91