Finding the Fourth Proportional to 81,607,148.10, 122,410,722.15 and 21,022,874.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,607,148.10 : 122,410,722.15 = 21,022,874.10 : x
2. Step 2: Convert to fraction form
   81,607,148.10/122,410,722.15 = 21,022,874.10/x
3. Step 3: Cross multiply
   81,607,148.10x = 122,410,722.15 × 21,022,874.10
4. Step 4: Simplify right side
   81,607,148.10x = 2,573,425,200,249,531.50
5. Step 5: Solve for x
   x = 2,573,425,200,249,531.50/81,607,148.10
6. Step 6: Final answer
   x = 31,534,311.15