Finding the Fourth Proportional to 37,139,492.79, 55,705,936.82 and 12,877,877.07

Step by Step Solution

1. Step 1: Write the proportion equation
   37,139,492.79 : 55,705,936.82 = 12,877,877.07 : x
2. Step 2: Convert to fraction form
   37,139,492.79/55,705,936.82 = 12,877,877.07/x
3. Step 3: Cross multiply
   37,139,492.79x = 55,705,936.82 × 12,877,877.07
4. Step 4: Simplify right side
   37,139,492.79x = 717,374,206,372,757.38
5. Step 5: Solve for x
   x = 717,374,206,372,757.38/37,139,492.79
6. Step 6: Final answer
   x = 19,315,670.53