Finding the Fourth Proportional to 128,057,426.47, 192,085,497.27 and 31,013,131.45

Step by Step Solution

1. Step 1: Write the proportion equation
   128,057,426.47 : 192,085,497.27 = 31,013,131.45 : x
2. Step 2: Convert to fraction form
   128,057,426.47/192,085,497.27 = 31,013,131.45/x
3. Step 3: Cross multiply
   128,057,426.47x = 192,085,497.27 × 31,013,131.45
4. Step 4: Simplify right side
   128,057,426.47x = 5,957,172,776,473,126
5. Step 5: Solve for x
   x = 5,957,172,776,473,126/128,057,426.47
6. Step 6: Final answer
   x = 46,519,541.59