Finding the Fourth Proportional to 45,272,499.83, 67,863,342.15 and 21,028,453.92

Step by Step Solution

1. Step 1: Write the proportion equation
   45,272,499.83 : 67,863,342.15 = 21,028,453.92 : x
2. Step 2: Convert to fraction form
   45,272,499.83/67,863,342.15 = 21,028,453.92/x
3. Step 3: Cross multiply
   45,272,499.83x = 67,863,342.15 × 21,028,453.92
4. Step 4: Simplify right side
   45,272,499.83x = 1,427,061,162,814,009.50
5. Step 5: Solve for x
   x = 1,427,061,162,814,009.50/45,272,499.83
6. Step 6: Final answer
   x = 31,521,589.67