Finding the Fourth Proportional to 130,018.50, 179,425.53 and 70,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,018.50 : 179,425.53 = 70,402.50 : x
2. Step 2: Convert to fraction form
   130,018.50/179,425.53 = 70,402.50/x
3. Step 3: Cross multiply
   130,018.50x = 179,425.53 × 70,402.50
4. Step 4: Simplify right side
   130,018.50x = 12,632,005,875.83
5. Step 5: Solve for x
   x = 12,632,005,875.83/130,018.50
6. Step 6: Final answer
   x = 97,155.45