Finding the Fourth Proportional to 130,663.65, 195,748.83 and 77,196.09

Step by Step Solution

1. Step 1: Write the proportion equation
   130,663.65 : 195,748.83 = 77,196.09 : x
2. Step 2: Convert to fraction form
   130,663.65/195,748.83 = 77,196.09/x
3. Step 3: Cross multiply
   130,663.65x = 195,748.83 × 77,196.09
4. Step 4: Simplify right side
   130,663.65x = 15,111,044,298.07
5. Step 5: Solve for x
   x = 15,111,044,298.07/130,663.65
6. Step 6: Final answer
   x = 115,648.42