Finding the Fourth Proportional to 77,692,846.77, 107,216,112.38 and 42,885,527.99

Step by Step Solution

1. Step 1: Write the proportion equation
   77,692,846.77 : 107,216,112.38 = 42,885,527.99 : x
2. Step 2: Convert to fraction form
   77,692,846.77/107,216,112.38 = 42,885,527.99/x
3. Step 3: Cross multiply
   77,692,846.77x = 107,216,112.38 × 42,885,527.99
4. Step 4: Simplify right side
   77,692,846.77x = 4,598,019,587,700,967
5. Step 5: Solve for x
   x = 4,598,019,587,700,967/77,692,846.77
6. Step 6: Final answer
   x = 59,182,019.69