Finding the Fourth Proportional to 76,602,798.56, 105,588,371.64 and 51,813,945.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,602,798.56 : 105,588,371.64 = 51,813,945.34 : x
2. Step 2: Convert to fraction form
   76,602,798.56/105,588,371.64 = 51,813,945.34/x
3. Step 3: Cross multiply
   76,602,798.56x = 105,588,371.64 × 51,813,945.34
4. Step 4: Simplify right side
   76,602,798.56x = 5,470,950,116,624,897
5. Step 5: Solve for x
   x = 5,470,950,116,624,897/76,602,798.56
6. Step 6: Final answer
   x = 71,419,715.98