Finding the Fourth Proportional to 172,871,300.79, 259,307,394.05 and 70,635,338.42

Step by Step Solution

1. Step 1: Write the proportion equation
   172,871,300.79 : 259,307,394.05 = 70,635,338.42 : x
2. Step 2: Convert to fraction form
   172,871,300.79/259,307,394.05 = 70,635,338.42/x
3. Step 3: Cross multiply
   172,871,300.79x = 259,307,394.05 × 70,635,338.42
4. Step 4: Simplify right side
   172,871,300.79x = 18,316,265,532,410,100
5. Step 5: Solve for x
   x = 18,316,265,532,410,100/172,871,300.79
6. Step 6: Final answer
   x = 105,953,188.58