Finding the Fourth Proportional to 91,212,066.26, 137,036,368.52 and 58,486,751.43

Step by Step Solution

1. Step 1: Write the proportion equation
   91,212,066.26 : 137,036,368.52 = 58,486,751.43 : x
2. Step 2: Convert to fraction form
   91,212,066.26/137,036,368.52 = 58,486,751.43/x
3. Step 3: Cross multiply
   91,212,066.26x = 137,036,368.52 × 58,486,751.43
4. Step 4: Simplify right side
   91,212,066.26x = 8,014,812,022,499,118
5. Step 5: Solve for x
   x = 8,014,812,022,499,118/91,212,066.26
6. Step 6: Final answer
   x = 87,870,085.08