Finding the Fourth Proportional to 194,061,443.40, 290,948,588.55 and 91,705,906.80

Step by Step Solution

1. Step 1: Write the proportion equation
   194,061,443.40 : 290,948,588.55 = 91,705,906.80 : x
2. Step 2: Convert to fraction form
   194,061,443.40/290,948,588.55 = 91,705,906.80/x
3. Step 3: Cross multiply
   194,061,443.40x = 290,948,588.55 × 91,705,906.80
4. Step 4: Simplify right side
   194,061,443.40x = 26,681,704,145,157,848
5. Step 5: Solve for x
   x = 26,681,704,145,157,848/194,061,443.40
6. Step 6: Final answer
   x = 137,491,011.49