Finding the Fourth Proportional to 12,918,732.72, 19,377,454.86 and 4,831,113.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,918,732.72 : 19,377,454.86 = 4,831,113.71 : x
2. Step 2: Convert to fraction form
   12,918,732.72/19,377,454.86 = 4,831,113.71/x
3. Step 3: Cross multiply
   12,918,732.72x = 19,377,454.86 × 4,831,113.71
4. Step 4: Simplify right side
   12,918,732.72x = 93,614,687,742,164.86
5. Step 5: Solve for x
   x = 93,614,687,742,164.86/12,918,732.72
6. Step 6: Final answer
   x = 7,246,429.64