Finding the Fourth Proportional to 130,355, 179,889.90 and 70,739

Step by Step Solution

1. Step 1: Write the proportion equation
   130,355 : 179,889.90 = 70,739 : x
2. Step 2: Convert to fraction form
   130,355/179,889.90 = 70,739/x
3. Step 3: Cross multiply
   130,355x = 179,889.90 × 70,739
4. Step 4: Simplify right side
   130,355x = 12,725,231,636.10
5. Step 5: Solve for x
   x = 12,725,231,636.10/130,355
6. Step 6: Final answer
   x = 97,619.82