Finding the Fourth Proportional to 77,783,469.32, 107,343,352.02 and 42,978,401.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,783,469.32 : 107,343,352.02 = 42,978,401.96 : x
2. Step 2: Convert to fraction form
   77,783,469.32/107,343,352.02 = 42,978,401.96/x
3. Step 3: Cross multiply
   77,783,469.32x = 107,343,352.02 × 42,978,401.96
4. Step 4: Simplify right side
   77,783,469.32x = 4,613,445,730,849,338
5. Step 5: Solve for x
   x = 4,613,445,730,849,338/77,783,469.32
6. Step 6: Final answer
   x = 59,311,390.60