Finding the Fourth Proportional to 102,751,928.83, 154,162,155.47 and 68,343,978.11

Step by Step Solution

1. Step 1: Write the proportion equation
   102,751,928.83 : 154,162,155.47 = 68,343,978.11 : x
2. Step 2: Convert to fraction form
   102,751,928.83/154,162,155.47 = 68,343,978.11/x
3. Step 3: Cross multiply
   102,751,928.83x = 154,162,155.47 × 68,343,978.11
4. Step 4: Simplify right side
   102,751,928.83x = 10,536,054,978,832,096
5. Step 5: Solve for x
   x = 10,536,054,978,832,096/102,751,928.83
6. Step 6: Final answer
   x = 102,538,756.19