Finding the Fourth Proportional to 218,073,494.72, 327,113,091.31 and 72,507,056.11

Step by Step Solution

1. Step 1: Write the proportion equation
   218,073,494.72 : 327,113,091.31 = 72,507,056.11 : x
2. Step 2: Convert to fraction form
   218,073,494.72/327,113,091.31 = 72,507,056.11/x
3. Step 3: Cross multiply
   218,073,494.72x = 327,113,091.31 × 72,507,056.11
4. Step 4: Simplify right side
   218,073,494.72x = 23,718,007,264,930,672
5. Step 5: Solve for x
   x = 23,718,007,264,930,672/218,073,494.72
6. Step 6: Final answer
   x = 108,761,531.50