Finding the Fourth Proportional to 101,280,023.28, 139,767,103.04 and 54,870,277.19

Step by Step Solution

1. Step 1: Write the proportion equation
   101,280,023.28 : 139,767,103.04 = 54,870,277.19 : x
2. Step 2: Convert to fraction form
   101,280,023.28/139,767,103.04 = 54,870,277.19/x
3. Step 3: Cross multiply
   101,280,023.28x = 139,767,103.04 × 54,870,277.19
4. Step 4: Simplify right side
   101,280,023.28x = 7,669,059,684,874,905
5. Step 5: Solve for x
   x = 7,669,059,684,874,905/101,280,023.28
6. Step 6: Final answer
   x = 75,721,345.99