Finding the Fourth Proportional to 128,871,426.06, 177,843,028.55 and 70,134,795.27

Step by Step Solution

1. Step 1: Write the proportion equation
   128,871,426.06 : 177,843,028.55 = 70,134,795.27 : x
2. Step 2: Convert to fraction form
   128,871,426.06/177,843,028.55 = 70,134,795.27/x
3. Step 3: Cross multiply
   128,871,426.06x = 177,843,028.55 × 70,134,795.27
4. Step 4: Simplify right side
   128,871,426.06x = 12,472,984,397,200,340
5. Step 5: Solve for x
   x = 12,472,984,397,200,340/128,871,426.06
6. Step 6: Final answer
   x = 96,786,268.13