Finding the Fourth Proportional to 22,773,667.58, 31,426,879.62 and 12,987,261.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,773,667.58 : 31,426,879.62 = 12,987,261.54 : x
2. Step 2: Convert to fraction form
   22,773,667.58/31,426,879.62 = 12,987,261.54/x
3. Step 3: Cross multiply
   22,773,667.58x = 31,426,879.62 × 12,987,261.54
4. Step 4: Simplify right side
   22,773,667.58x = 408,149,105,011,035.81
5. Step 5: Solve for x
   x = 408,149,105,011,035.81/22,773,667.58
6. Step 6: Final answer
   x = 17,921,975.17