Finding the Fourth Proportional to 101,979, 152,859.15 and 49,272.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,979 : 152,859.15 = 49,272.30 : x
2. Step 2: Convert to fraction form
   101,979/152,859.15 = 49,272.30/x
3. Step 3: Cross multiply
   101,979x = 152,859.15 × 49,272.30
4. Step 4: Simplify right side
   101,979x = 7,531,721,896.55
5. Step 5: Solve for x
   x = 7,531,721,896.55/101,979
6. Step 6: Final answer
   x = 73,855.62