Finding the Fourth Proportional to 37,580,145.30, 56,356,390.98 and 12,981,814.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,580,145.30 : 56,356,390.98 = 12,981,814.20 : x
2. Step 2: Convert to fraction form
   37,580,145.30/56,356,390.98 = 12,981,814.20/x
3. Step 3: Cross multiply
   37,580,145.30x = 56,356,390.98 × 12,981,814.20
4. Step 4: Simplify right side
   37,580,145.30x = 731,608,196,684,915.88
5. Step 5: Solve for x
   x = 731,608,196,684,915.88/37,580,145.30
6. Step 6: Final answer
   x = 19,467,944.86