Finding the Fourth Proportional to 123,639,642.98, 185,241,214.82 and 75,018,764.42

Step by Step Solution

1. Step 1: Write the proportion equation
   123,639,642.98 : 185,241,214.82 = 75,018,764.42 : x
2. Step 2: Convert to fraction form
   123,639,642.98/185,241,214.82 = 75,018,764.42/x
3. Step 3: Cross multiply
   123,639,642.98x = 185,241,214.82 × 75,018,764.42
4. Step 4: Simplify right side
   123,639,642.98x = 13,896,567,055,456,192
5. Step 5: Solve for x
   x = 13,896,567,055,456,192/123,639,642.98
6. Step 6: Final answer
   x = 112,395,722.93