Finding the Fourth Proportional to 130,470, 180,048.72 and 70,854

Step by Step Solution

1. Step 1: Write the proportion equation
   130,470 : 180,048.72 = 70,854 : x
2. Step 2: Convert to fraction form
   130,470/180,048.72 = 70,854/x
3. Step 3: Cross multiply
   130,470x = 180,048.72 × 70,854
4. Step 4: Simplify right side
   130,470x = 12,757,172,006.88
5. Step 5: Solve for x
   x = 12,757,172,006.88/130,470
6. Step 6: Final answer
   x = 97,778.59