Finding the Fourth Proportional to 73,673,919.79, 110,280,979.55 and 54,265,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   73,673,919.79 : 110,280,979.55 = 54,265,061.31 : x
2. Step 2: Convert to fraction form
   73,673,919.79/110,280,979.55 = 54,265,061.31/x
3. Step 3: Cross multiply
   73,673,919.79x = 110,280,979.55 × 54,265,061.31
4. Step 4: Simplify right side
   73,673,919.79x = 5,984,404,116,607,606
5. Step 5: Solve for x
   x = 5,984,404,116,607,606/73,673,919.79
6. Step 6: Final answer
   x = 81,228,257.35