Finding the Fourth Proportional to 81,996,434.93, 123,079,755.62 and 47,520,196.49

Step by Step Solution

1. Step 1: Write the proportion equation
   81,996,434.93 : 123,079,755.62 = 47,520,196.49 : x
2. Step 2: Convert to fraction form
   81,996,434.93/123,079,755.62 = 47,520,196.49/x
3. Step 3: Cross multiply
   81,996,434.93x = 123,079,755.62 × 47,520,196.49
4. Step 4: Simplify right side
   81,996,434.93x = 5,848,774,171,430,082
5. Step 5: Solve for x
   x = 5,848,774,171,430,082/81,996,434.93
6. Step 6: Final answer
   x = 71,329,615.44