Finding the Fourth Proportional to 77,571,741.67, 107,049,828.35 and 42,765,677.57

Step by Step Solution

1. Step 1: Write the proportion equation
   77,571,741.67 : 107,049,828.35 = 42,765,677.57 : x
2. Step 2: Convert to fraction form
   77,571,741.67/107,049,828.35 = 42,765,677.57/x
3. Step 3: Cross multiply
   77,571,741.67x = 107,049,828.35 × 42,765,677.57
4. Step 4: Simplify right side
   77,571,741.67x = 4,578,058,443,139,945
5. Step 5: Solve for x
   x = 4,578,058,443,139,945/77,571,741.67
6. Step 6: Final answer
   x = 59,017,089.79