Finding the Fourth Proportional to 72,648,979.66, 108,973,870.84 and 18,061,565.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,648,979.66 : 108,973,870.84 = 18,061,565.24 : x
2. Step 2: Convert to fraction form
   72,648,979.66/108,973,870.84 = 18,061,565.24/x
3. Step 3: Cross multiply
   72,648,979.66x = 108,973,870.84 × 18,061,565.24
4. Step 4: Simplify right side
   72,648,979.66x = 1,968,238,677,631,993.50
5. Step 5: Solve for x
   x = 1,968,238,677,631,993.50/72,648,979.66
6. Step 6: Final answer
   x = 27,092,447.64