Finding the Fourth Proportional to 102,608,867.98, 153,914,298.42 and 82,087,607.28

Step by Step Solution

1. Step 1: Write the proportion equation
   102,608,867.98 : 153,914,298.42 = 82,087,607.28 : x
2. Step 2: Convert to fraction form
   102,608,867.98/153,914,298.42 = 82,087,607.28/x
3. Step 3: Cross multiply
   102,608,867.98x = 153,914,298.42 × 82,087,607.28
4. Step 4: Simplify right side
   102,608,867.98x = 12,634,456,484,362,692
5. Step 5: Solve for x
   x = 12,634,456,484,362,692/102,608,867.98
6. Step 6: Final answer
   x = 123,132,208.09