Finding the Fourth Proportional to 124,810,819.89, 187,241,764.31 and 42,919,062.57

Step by Step Solution

1. Step 1: Write the proportion equation
   124,810,819.89 : 187,241,764.31 = 42,919,062.57 : x
2. Step 2: Convert to fraction form
   124,810,819.89/187,241,764.31 = 42,919,062.57/x
3. Step 3: Cross multiply
   124,810,819.89x = 187,241,764.31 × 42,919,062.57
4. Step 4: Simplify right side
   124,810,819.89x = 8,036,240,998,138,083
5. Step 5: Solve for x
   x = 8,036,240,998,138,083/124,810,819.89
6. Step 6: Final answer
   x = 64,387,374.47