Finding the Fourth Proportional to 91,089,061.30, 136,633,591.95 and 82,302,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,089,061.30 : 136,633,591.95 = 82,302,570.10 : x
2. Step 2: Convert to fraction form
   91,089,061.30/136,633,591.95 = 82,302,570.10/x
3. Step 3: Cross multiply
   91,089,061.30x = 136,633,591.95 × 82,302,570.10
4. Step 4: Simplify right side
   91,089,061.30x = 11,245,295,779,479,668
5. Step 5: Solve for x
   x = 11,245,295,779,479,668/91,089,061.30
6. Step 6: Final answer
   x = 123,453,855.15