Finding the Fourth Proportional to 76,912,495.29, 106,139,248.71 and 42,105,185.73

Step by Step Solution

1. Step 1: Write the proportion equation
   76,912,495.29 : 106,139,248.71 = 42,105,185.73 : x
2. Step 2: Convert to fraction form
   76,912,495.29/106,139,248.71 = 42,105,185.73/x
3. Step 3: Cross multiply
   76,912,495.29x = 106,139,248.71 × 42,105,185.73
4. Step 4: Simplify right side
   76,912,495.29x = 4,469,012,780,177,212.50
5. Step 5: Solve for x
   x = 4,469,012,780,177,212.50/76,912,495.29
6. Step 6: Final answer
   x = 58,105,159.16