Finding the Fourth Proportional to 91,771,696.15, 137,659,003.98 and 51,089,711.96

Step by Step Solution

1. Step 1: Write the proportion equation
   91,771,696.15 : 137,659,003.98 = 51,089,711.96 : x
2. Step 2: Convert to fraction form
   91,771,696.15/137,659,003.98 = 51,089,711.96/x
3. Step 3: Cross multiply
   91,771,696.15x = 137,659,003.98 × 51,089,711.96
4. Step 4: Simplify right side
   91,771,696.15x = 7,032,958,861,783,245
5. Step 5: Solve for x
   x = 7,032,958,861,783,245/91,771,696.15
6. Step 6: Final answer
   x = 76,635,380.59