Finding the Fourth Proportional to 21,787,924.52, 30,066,365.96 and 12,488,828.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,787,924.52 : 30,066,365.96 = 12,488,828.05 : x
2. Step 2: Convert to fraction form
   21,787,924.52/30,066,365.96 = 12,488,828.05/x
3. Step 3: Cross multiply
   21,787,924.52x = 30,066,365.96 × 12,488,828.05
4. Step 4: Simplify right side
   21,787,924.52x = 375,493,674,584,785.06
5. Step 5: Solve for x
   x = 375,493,674,584,785.06/21,787,924.52
6. Step 6: Final answer
   x = 17,234,026.77