Finding the Fourth Proportional to 76,801,892.31, 115,202,949.33 and 31,363,686.81

Step by Step Solution

1. Step 1: Write the proportion equation
   76,801,892.31 : 115,202,949.33 = 31,363,686.81 : x
2. Step 2: Convert to fraction form
   76,801,892.31/115,202,949.33 = 31,363,686.81/x
3. Step 3: Cross multiply
   76,801,892.31x = 115,202,949.33 × 31,363,686.81
4. Step 4: Simplify right side
   76,801,892.31x = 3,613,189,222,374,419
5. Step 5: Solve for x
   x = 3,613,189,222,374,419/76,801,892.31
6. Step 6: Final answer
   x = 47,045,575.49