Finding the Fourth Proportional to 74,681,789.83, 111,958,789.06 and 28,656,687.67

Step by Step Solution

1. Step 1: Write the proportion equation
   74,681,789.83 : 111,958,789.06 = 28,656,687.67 : x
2. Step 2: Convert to fraction form
   74,681,789.83/111,958,789.06 = 28,656,687.67/x
3. Step 3: Cross multiply
   74,681,789.83x = 111,958,789.06 × 28,656,687.67
4. Step 4: Simplify right side
   74,681,789.83x = 3,208,368,050,003,833
5. Step 5: Solve for x
   x = 3,208,368,050,003,833/74,681,789.83
6. Step 6: Final answer
   x = 42,960,513.63