Finding the Fourth Proportional to 37,580,147.30, 56,356,393.98 and 12,981,816.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,580,147.30 : 56,356,393.98 = 12,981,816.20 : x
2. Step 2: Convert to fraction form
   37,580,147.30/56,356,393.98 = 12,981,816.20/x
3. Step 3: Cross multiply
   37,580,147.30x = 56,356,393.98 × 12,981,816.20
4. Step 4: Simplify right side
   37,580,147.30x = 731,608,348,343,146.38
5. Step 5: Solve for x
   x = 731,608,348,343,146.38/37,580,147.30
6. Step 6: Final answer
   x = 19,467,947.86